The movie begins at a huge new house in California
that a married couple, Simon, and Robyn, are considering buying.
An estate agent shows them around the house,
and we learn that Simon got a new job, which is why they want to move here from Chicago,
where they are currently living.
Time passes; Simon and Robyn are in a department store shopping for things to furnish their
new home.
All of a sudden, a man approaches Simon, saying they went to school together.
His name is Gordon, but Simon remembers him as Gordo.
They are interrupted by the clerk to give an address for delivery, and Simon tells the
clerk right away.
With no time to chit chat, Robyn asks for Gordo's phone number and tells him they will
call and should catch up another time.
The next day, after Simon leaves for work, Robyn is in the shower when the doorbell rings.
She goes to open it to find nobody there, except for a gift-wrapped bottle of wine and a letter.
When Simon returns home from work, Robyn shows him the letter, which reads:
Welcome home :) Gordo.
They have no idea how he managed to get their address, but the wife is thankful for it.
The next day, Robyn goes to see Lucy, her next-door neighbor.
Lucy lets Robyn hold her daughter, and asks if she wants one herself, so Robyn tells her
that she was pregnant last year, but it didn't end well.
Afterwards, Robyn is doing work on her laptop and cooking a meal when Gordo unexpectedly
shows up uninvited.
Robyn thanks him for the wine, and says Simon should have messaged him.
He brushes it off and gives her a list of essential numbers for plumbers, maids, and
such, as well as a glass cleaner.
The man also expresses how much he loves this style of architecture, and Robyn invites him
in to give him a tour.
As they are looking around, Gordo notices a child's toy in one room, and asks if they
have a kid, to which Robyn replies they only have a dog named Mr. Bo Jangles at the moment.
Robyn also mentions that she planned to fill the pond outside their house with fish, and
then she invites Gordo to stay for dinner.
Later that evening, they are having dinner and drinking wine, when Gordo asks Simon if
he's in touch with their high school buddies, including Greg Pierson, but Simon says he
hasn't talked to anybody since they graduated.
To add, Gordo remembers that Simon was class president, and Simon had a campaign called
‘Simon Says’ and whatever he said happened.
Gordo is probably both happy and a little bit jealous of Simon's life now that he has
a beautiful wife, a gorgeous house, and a successful job.
When the success Simon inquires about Gordo's life, he awkwardly replies that he joined the military
after high school, but later left, and that a lot of good and bad things happened to him
right after that.
While cleaning up after the dinner, Simon tells Robyn that he felt uncomfortable with
Gordo there.
Simon thinks this guy is odd, and must be delusional for thinking they were friends
in high school, so Robyn assures him that it was only one dinner and they don't have
to do it again.
The next evening, Simon and Robyn are at a corporate event for Simon's job, and here
we learn that the couple is still working on conceiving a child and wants to start a family.
Later, when they get home, they discover yet another gift from Gordo; a letter thanking
them for dinner, and some fish food.
They then realise the fish food is for the koi fish he got them for their empty pond.
Robyn wants to thank him, but Simon says that this is not normal, and that Gordo is trespassing.
The husband also mentions that everyone in school used to call him Gordo the weirdo.
Robyn says that Gordo is just misunderstood, and seeing how Robyn reacts, Simon jokes that
she now has a new friend.
The next morning, after a run, Robyn is about to start working on her laptop when she hears
Jangles bark, and sees Gordo at the door.
They talk a little, and the super nice Robyn invites him in for a cup of tea.
Inside the house, Gordo helps set up the TV, and Robyn tells him that Simon will love him
for this.
Gordo then starts to pick up trash without being asked, and while in the kitchen,....
he spots the fridge where Simon wrote weirdo beside his phone number.
Later that evening, Simon and Robyn are having a little get together with Simon's colleagues
in their new house.
Simon is telling everybody about the strange Gordo, and they all make fun of him, but strangely,
even though Gordo got upset after seeing what Simon wrote, he still invited them for dinner
at his place with another couple.
Simon's colleagues joke about Gordo chopping them up into pieces if they do go.
But as time passes, the couple is in their car in front of a big electric gate.
They end up at Gordo's place, and as they enter, they see a huge, beautiful house, and
they are shocked to find that he is living in such an extravagant place.
Gordo greets them at the front door, and the couple hand him a bottle of wine.
As they walk inside, they ask if the other couple is coming, and Gordo says they cancelled
last minute, so it's just gonna be the three of them.
Curious, Simons asks if Gorgo is married, to which he replies that it's a long story but the short answer is no.
Gordo then gets a phone call that seems like an emergency, saying he will only be gone
for 5 minutes.
After he leaves them alone in his house, Simon tells Robyn that Gordo is obsessed with her,
which is why he is doing all these nice things.
As they are snooping around, they see Gordo pulling into the driveway and run downstairs.
They greet him as if nothing happened, and Simon asks him what he does for work to be
able to afford a place like this.
Gordo tells them that he was lying about an urgent work call, and that it was actually
his ex-wife he was speaking to.
He tells them she left with their 2 kids, and mentions that the house is actually her
family home, and she is holding all the cards right now, so he has to do whatever she says.
Hearing this, Robyn feels bad, but Simon doesn't really seem to care about the story; he forces
Robyn to go wait in the car and give him and Gordo a few minutes alone.
Here Simon rudely tells Gordo to stop visiting them, and to take time to sort out his current
situation.
The couple get into their car and drive away, but as they come to the electric gate, it’s
not opening.
Simon gets agitated, honking the horn, and leaves the car to go back to the house.
As he does this, Gordo finally takes the remote out of his pocket and opens the gate.
Now back home, they get into bed, thinking it is all over, however, Robyn feels something
is not right.
Back from her usual morning run, Robyn finds the fish Gordo gifted them are now all dead.
To make matters worse, their dog, Jangles, is gone.
The husband quickly drives to Gordo’s house and, to his surprise, he finds a couple living
there who have no idea who Gordon is.
Now getting the police involved, one of the officers tells Simon that Gordo used to be
a driver for the man who owns that house, and had access to the garage, so that's how
he got inside.
Simon wants their dog back, and the police tell him they can find out where he lives,
but without evidence, they can’t get a warrant to search the place.
The following morning, Robyn is alone in the house when she hears running water.
Her tap has been turned, causing her to get paranoid.
She explains the situation to her neighbour, and how she's been having trouble sleeping
lately, and Lucy tells her to stay for a while.
While Robyn is in the bathroom, she looks inside the cabinet and accidentally finds
some sleeping pills, which she steals some of them.
Later that night, Simon is fast asleep, but Robyn is having trouble sleeping, so she goes
into another room and takes some sleeping medication she has stashed away.
As she is going back to the bedroom, she notices a light on in the hallway.
She slowly goes to check it out, and then this happens…
her dog, Jangles, surprises her at the window.
Seeing their dog's sudden reappearance, Simon is convinced this is Gordo's doing, yet Robyn
is still not 100% convinced.
The next morning, Robyn collects the mail, and notices a letter from Gordo.
In the letter, he expresses his apology for lying, saying that he would feel ashamed to
show them where he really lives.
He says that he will leave them alone as they asked, and he also mentions forgiving Simon.
As if that wasn't pathetically sweet enough, he also says specifically to Simon that he
was willing to let bygones be bygones, and only had good intentions for them.
When Robyn asks Simon what it means to "let bygones be bygones," Simon replies that he
is "just an unstable man" and has no idea what he is talking about.
The next day, while Robyn is taking a shower, she spots someone walking into the bathroom.
Robyn wakes up in terror as it is revealed that she just had a nightmare.
In the meantime, Simon is meeting with his bosses to discuss a possible promotion;
he is told that his only competition is his coworker, Danny McDonald.
Back home, Robyn is cutting vegetables when she hears a door closing.
Startled, she spills her Gatorade, and goes to have a look.
While walking to the source of the sound, she suddenly has a panic attack and collapses.
It's now the next morning, and Robyn wakes up in her bed.
Going to the kitchen, she sees Simon sitting there, and he tells her that when he got home
last night, he found her passed out.
The wife then tells Simon that she is scared and wants Simon to call Gordo and just say
sorry to him to make things right.
However, Simon is not listening, blaming everything on the pills she took without him knowing.
When she asks him again what let bygones be bygones means, Simon gets flustered, and responds
that he just wants her to move on with her life and stop thinking about Gordo the weirdo.
Time is passing by; Robyn and Simon have now moved on from their past with Gordo, and are
starting to live a normal, happy family life.
Until one day, Robyn hands Simon a gift; a positive pregnancy test.
More time passes, and Robyn, now visibly pregnant, is in a store with Lucy when they spot Gordo
staring at them through the window.
Robyn walks out to him, and the creepy guy quickly leaves.
Afterwards, Robyn is now in her house with family and friends, receiving gifts for her
soon to be born child.
She walks with Simon’s sister and asks her if she knows Gordo.
To her surprise, the sister tells her that Gordo was molested by an older kid in school,
was bullied, and then moved to a different school.
She tells her to ask Simon more about it, as Simon and his friend Greg Pierson reported
the incident, after which Gordo was bullied by all the students for allegedly being gay.
As usual, Simon leaves for work the next day, and Robyn opens his file cabinet.
She discovers that Simon has run background checks on Danny McDonald, and Gordo, who has
spent his life in and out of prison and has several charges against him, including breaking
and entering, and abduction of a minor.
She then discovers the guy who was with Simon, Greg Pierson, through some online digging,
and goes to talk to him at his workplace.
It is at this point that she finds out that Simon made up the whole molestation story,
because he was a bully.
It ruined Gordo's life, and Simon had a chance to make everything right by telling the truth,
but he never did.
As a result of the false report, Gordo's father thought Gordo was gay, and tried to burn him
alive, leading to his arrest for attempted murder, and Gordo being sent to military school.
Back in the house, Simon is talking to his colleague about the new potential promotion,
and finds out that the other candidate is being investigated.
Robyn then confronts Simon about what Greg had just told her, but Simon denies it.
He plays it off like it was only a little incident, tells her he is not apologizing
for something that happened 20 years ago, and that Gordo needs to man up and let it go.
The husband also rants about Robyn getting bullied in school when she slaps him, and
tells him he was a bully in school, and is still a bully now.
In the end, Robyn tells him he needs to apologise to Gordo to make this right, if not for the
sake of Gordo, then for her.
Later on, Simon finds Gordo at a bar quiz where he works.
After Gordo is finished, Simon confronts him in the parking lot and apologizes, but Gordo
learns that his apology is not sincere, as Simon says Robyn wanted him to do it.
Gordo does not accept his apology and tells him it’s too late for that now.
Here Simon's true colours show when he gets aggressive, trying to make Gordo accept his
apology by kicking him to the ground, and calling him a loser.
He also threatens him to leave his family alone, or else he will make his life hell.
When Simon comes home, he lies to his wife about Gordo being really appreciative of the apology.
He hugs her and tells her that now it's finally over.
A few days pass, and Simon has his colleagues over to celebrate his new promotion.
While giving a speech, they hear a loud bang, which startles them all.
Looking out the window to see what it was, a rock flies through the window and shatters it.
Simon then goes outside to check, right when a man runs out of the shadows and pushes him.
Simon manages to catch him and take him to the ground.
It wasn't Gordo after all; it was Danny McDonald, the other candidate for the promotion.
Danny accuses Simon of cheating him out of the job promotion, by sending a misleading
email to his bosses, saying that he knew that people at Danny's previous company had found
him inadequate.
Suddenly, Robyn's water breaks, and she is rushed to hospital, where she gives birth
to a baby boy.
While in the hospital, Simon's colleague calls him, and tells him he needs to clear out his
office, as the boss found out that Simon fabricated evidence against Danny.
Simon tells his wife he is going home to check on the window being fixed, and on Jangles.
However, things get even worse for him when Robyn expresses to him that she does not want to go back to
the house with him, essentially telling him she wants to break up.
After all the crazy stuff that hits Simon outta nowhere, he comes home, only to find
a big gift box waiting for him on the porch.
'A gift' is written in a letter, and there is also a smiley face.
Meanwhile in the hospital, Gordo, with a sling on his arm, walks into Robyn's room while
she sleeps.
Simon opens the gift and finds a baby carrier with 3 smaller gifts inside, labeled ‘1’ ‘2’ ‘3’.
He opens number 1, and discovers a key to his own house.
Number 2 contains a CD, and Simon puts it into a CD player.
He then hears an audio of him making fun of Gordo the night he'd invited him and Robyn
to dinner, calling him a weirdo who was obsessed with his wife.
Back in the hospital, Robyn wakes up and is shocked to see Gordo standing there.
He gives his congratulations and asks if it is a boy or a girl.
Meanwhile, Simon opens up gift number 3.
Inside is a DVD that reads Watch Me with a smiley face.
When he plays it, he discovers that Gordo frequently recorded his wife while she was at home.
He also sees the moment when she passed out, which turns out to be because Gordo spiked her gatorade.
Gordo stands over Robyn after she had fainted, seemingly about to sexually assault her.
Wearing a monkey mask, he carries her over to the bed and touch her while waving to the
camera, mocking Simon before the camera cuts.
Back to Gordo; with a bandaged eye and his arm in a sling, he tells Robyn that Simon
caused his injuries.
After witnessing all this, Simon speeds to the hospital, trying to call Robyn, but there
is no answer.
Arriving at the hospital, he finds that Robyn is not in the room she was in before.
He then spots Gordo getting into an elevator, but is unable to catch him, so he follows him
by taking the stairs.
As he frantically searches for him everywhere and heads outside, his phone rings.
It turns out to be Gordo, who calls Simon to taunt him, refusing to confirm whether
or not he raped Robyn and fathered the baby, just as Simon refused to come clean about
the molestation story years before.
He tells Simon to go and check the baby's eyes, because the eyes never lie.
Panicked, Simon runs back into the hospital and sees Robyn and the baby; he's totally fixated on
the baby's eyes, but he just can't figure them out, while the nurse closes the curtain.
With his marriage over and his career destroyed, he drops to the ground, crying, while Gordo
looks at him.
Satisfied with his revenge, Gordo the fucking weirdo, walks away, tossing away the fake
sling from his arm.