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Knock Knock (2015) Plot Summary

knock knock movie poster 2015
Roth, E. (Director). (2015). Knock Knock [Film]. Lionsgate.

Knock Knock Film Synopsis

A devoted family man’s peaceful weekend unravels into psychological torment after sheltering two strangers during a storm. Trapped in a twisted game of seduction, deception, and destruction, he is left to face the irreversible fallout of one disastrous decision.

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A Quiet Weekend Turns Sinister

On Father’s Day weekend, architect Evan Webber remained behind in his suburban Los Angeles home. His wife, Karen, a successful sculptor, left for a beach getaway with their two children, entrusting her assistant Louis to transport a large sculpture to a gallery showing. Evan, recovering from a shoulder injury, planned to use the solitude to focus on an important project and attend a scheduled physical therapy appointment.

The peaceful evening took a strange turn when two young women appeared at Evan’s doorstep during a torrential downpour. Drenched and shivering, they introduced themselves as Genesis and Bel, claiming to be looking for a party nearby. Their phones, they said, were not working. Empathetic and cautious, Evan invited them inside to dry off and use his Wi-Fi to contact their host and order an Uber.

Temptation at the Door

Once inside, the young women warmed up quickly—perhaps too quickly. They played with Evan’s dog, teased him playfully, and flirted shamelessly. Evan, though amused and wary, maintained polite boundaries. He ordered them a ride and brought towels for their wet clothes.

When the Uber driver arrived, the girls disappeared into the bathroom. Evan knocked gently, only to find them both naked. Flustered and trying to defuse the situation, he urged them to leave. Instead, they persisted. Seduction escalated. Against his better judgment, Evan succumbed to their advances. The night spiraled into a regretful and impulsive threesome.

A Trap Springs Shut

Morning revealed the consequences. Evan awoke to find Karen’s cherished sculpture defaced. Panic set in. When he threatened to call the police, the women turned the tables, claiming they were underage. As Evan reeled from this accusation, Vivian, his physical therapist, arrived unexpectedly. Genesis, pretending to be Evan’s lover, caused Vivian to storm off in disbelief.

In an attempt to rectify the situation, Evan offered to drive the girls home. They agreed. But once night fell, the nightmare deepened.

Genesis ambushed Evan from behind, knocking him unconscious. He awoke tied to his bed. Bel climbed on top of him and sexually assaulted him while Genesis filmed the act using Evan’s own phone. A violent struggle ensued. Evan broke free momentarily, only to be stabbed in the shoulder with a fork and retied, this time to a chair.

The interrogation began.

Manipulation and Control

Genesis and Bel mocked Evan’s morals, taunted him about his marriage, and forced him to confess to his actions. Their questions were laced with contempt. They revealed their knowledge of his family and routines—evidence that this encounter was not random.

When Louis arrived to collect the sculpture, he immediately sensed something was wrong. Upon finding Evan restrained, he attempted a rescue but suffered a severe asthma attack. The girls had stolen his inhaler. Disoriented, Louis stumbled, hit his head on Karen’s sculpture, and died.

His death became another part of their game. The girls rearranged his corpse into an artistic piece, using the blood-red mess to pose him grotesquely. They then used both Evan’s and Louis’s phones to fabricate a story: Louis had discovered an affair between Evan and Louis’s wife, attacked him in rage, and died in the struggle.

The Game Revealed

Evan, bruised and bleeding, pleaded for mercy. The girls remained unmoved. They told him he would die at dawn. His grave had already been dug in the backyard. But their cruelty was not impulsive—it was rehearsed. They admitted to surveilling him and plotting their entire scheme long before Karen and the children departed. Their hobby, they claimed, was ruining the lives of men who betrayed their families.

In a twisted form of sport, Genesis offered Evan a chance to escape. She gave him his own gun and challenged him to hide. Injured and frantic, Evan attempted to flee through the neighborhood but found no one home. He was eventually captured and dragged back.

A Hollow Mercy

At sunrise, Evan was dragged into the yard, tied with a garden hose, and buried in a shallow pit with only his head exposed. Genesis raised a massive stone and pretended to crush his skull, missing on purpose. She and Bel then burst into laughter.

They were never going to kill him.

They were not underage. Their threat had been a lie, carefully crafted for psychological torture. As Evan wept, Genesis uploaded the video of his assault to his public Facebook account, presenting it as damning evidence and branding him a predator. They left him in the yard, helpless and buried, taking the dog with them.

When Karen and the children returned home later that day, they found their house in shambles.

A Calculated Destruction

The entire encounter had been orchestrated, not as an impulsive crime but as a deliberate, sadistic ritual. Evan’s life had been dissected and dismantled in less than 48 hours. His marriage, reputation, and safety had all been targeted with surgical precision. The girls, now vanished, left behind a digital trail and a ruined man—a man who had let temptation destroy everything he held dear.

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