Summer of 84 (2018) Timeline Explained – Every Event in Order

Davey becomes suspicious of Mackey after learning that Mackey is a police officer from a neighboring town who has access to the entire region. As the son of an investigative journalist, Davey is already drawn to conspiracy theories and urban legends. His paranoia is further fueled by the fact that Mackey lives alone, has no visible social connections, and exhibits strange behaviors like frequent late-night jogs and suspicious purchases.

• davey armstrong
• wayne mackey
• cape may slayer
• suspicion
• investigation

When one of Davey's acquaintances appears on a milk carton as a missing person shortly after being seen entering Mackey's home, it validates Davey's suspicions. This eerie coincidence proves that Mackey had contact with a missing boy, convincing his initially skeptical friends that Davey's theories might be true and that the danger is real.

• milk carton
• missing boy
• friends join investigation
• coincidence

Sodium hydroxide (lye) is commonly used in the process of dissolving human flesh, a method serial killers use to dispose of bodies. Finding these canisters in a storage unit linked to Mackey provided concrete forensic evidence that he was disposing of victims, directly connecting him to the Cape May Slayer crimes.

• sodium hydroxide
• lye
• body disposal
• evidence
• storage unit

Mackey deliberately spares Davey's life not out of mercy, but to inflict psychological torture. He tells Davey that leaving him alive to live in constant paranoia, always waiting for Mackey to return, is a worse fate than death. This reflects Mackey's sadistic nature and his desire to make Davey suffer emotionally rather than physically.

• mackey spare
• davey survival
• psychological torture
• paranoia

When Mackey visits Davey's house and claims to call his nephew to prove the boy in his home was family, Davey notices the call was actually made to Mackey's own house phone, he answered his own call. This revealed Mackey had fabricated the entire story about having a nephew, confirming he was lying about something and reigniting Davey's suspicions.

• phone call
• nephew lie
• mackey deception
• evidence

The boys noticed Mackey frequently buying gardening tools and large bags of soil, which seemed unusual for a single man with no garden. They initially suspected he was using soil to bury bodies. However, during the festival, they learned the soil was actually for a community beautification project, though this turned out to be a cover story that temporarily threw them off track.

• soil
• gardening tools
• mackey purchases
• investigation clue

During the deadly manhunt game in the wilderness, Woody is captured by Mackey. Despite Davey's attempt to distract the killer, Mackey catches Woody and brutally cuts his throat, killing him. This tragic death occurs while Davey watches helplessly, making it one of the film's most horrifying moments.

• woody death
• manhunt game
• mackey attack
• tragic ending

After the confrontation, Mackey escapes while Davey and Woody are left in the wilderness. Although an APB was issued, Mackey successfully flees. The final scene shows Davey reading a newspaper about the ongoing threat, implying Mackey remains free and dangerous. The bleak ending deliberately leaves the killer unresolved, emphasizing the traumatic aftermath and lingering danger.

• cape may slayer escape
• ending
• apb
• manhunt
• unresolved

Nikki, Davey's crush, urges him to abandon the investigation because she recognizes the extreme danger involved. As the killer's neighbor, she likely feared for Davey's safety and understood that confronting a suspected serial killer could lead to deadly consequences. Her warning represents the voice of reason against Davey's reckless determination.

• nikki warning
• davey investigation
• danger
• crush subplot

When the boys present their evidence, including the bloodied shirt from Mackey's shed, Davey's parents react with outrage and accuse them of vandalism. Mr. Armstrong takes the boys to apologize to Mackey, dismissing their claims as paranoid fantasy. This parental rejection stems from the adults' inability to imagine their trusted neighbor could be a serial killer, choosing instead to believe the teenagers are causing trouble.

• parents disbelief
• davey parents
• vandalism accusation
• authority trust

After the boys turn over the evidence to police and an APB is issued, Mackey learns he is being hunted. That night, he tracks down Davey and Woody, likely using his police training and knowledge of the area, and captures them. He traps them in his cruiser and takes them to a remote island where he forces them to play his deadly version of manhunt.

• mackey capture
• davey woody
• cruiser
• island
• manhunt game

In Mackey's locked basement, the boys discover a desiccated (dried-out) corpse in a bathtub alongside a freshly abducted victim still alive. This horrifying discovery confirmed everything: Mackey was indeed the Cape May Slayer, he was actively abducting boys, and his home was his personal torture chamber. The desiccated state indicated he had been killing for years.

• desiccated corpse
• bathtub
• basement discovery
• cape may slayer confirmed

Mackey forces Davey and Woody into a deadly manhunt game as a twisted form of sadistic entertainment. Having evaded capture, he sees the boys as toys for his perverse pleasure. The game mirrors the children's own earlier stakeout game, but with lethal stakes, Mackey acts as the hunter while the terrified boys must hide or face death.

• manhunt game
• mackey sadism
• deadly game
• hunter prey