Old 37

In 1977, Jimmy, living with his two sons in a derelict junkyard, steals an ambulance and pretends to be a paramedic at a crash on Ash Pine Road. He strangles the female driver and revels in her wounds as the boys watch from the front seat. News clippings later reveal more than 30 disappearances along Ash Pine Road over the following two decades.

Samantha and Jordan are making out when Jordan loses control and crashes on Ash Pine Rd. Ambulance 37 arrives and is seized by Darryl and Jon Roy, who carry out their father's method, killing the couple. The brothers drive off, continuing their chilling pattern along Ash Pine Rd.

Angel attempts a dangerous stunt with Brad, Jason, and Tim on Ash Pine Rd; Brooke distracts Jason, causing Angel to fall and die. When officers arrive, they declare it an accident and blame Angel rather than the stunt. The truth about the group’s recklessness is buried beneath a convenient loss of memory.

After Angel’s funeral, Jordan goes missing, prompting an intensified police inquiry. Officer Higgins questions Amy about Angel’s new circle of friends, trying to connect the dots between the classmates' dynamics. The investigation tightens around the group connected to the town’s dark past.

Amy asks her mother for a breast augmentation, hoping to fit in with her peers. They visit a doctor and schedule the surgery, highlighting Amy’s fears about appearance and acceptance. The procedure becomes a looming milestone in a life under constant scrutiny.

Brooke and Jason argue, and Jason secretly contacts Amy online to invite her to a party at Brooke’s home. Amy attends hoping to fit in, unaware of the lethal dynamics at play within the group. The party becomes a prelude to the town’s buried secrets resurfacing.

At the party, Brooke coldly reveals that she and the others were involved in an unreported hit-and-run that killed an old woman on Ash Pine Rd. The admission ties the group’s past to the present danger facing Amy and Jason. The confession unleashes a chilling sense of inevitability.

Brad and Rachel leave the party and park outside Jimmy’s Junkyard, where Darryl and Jon Roy murder them and stash their bodies inside. Tim arrives later, follows the blood trail to the junkyard, and discovers the two corpses in the trunk. Jon Roy appears and kills Tim, cementing the grim pattern.

Officer Higgins responds to a report of an abandoned car at the junkyard and searches the property, narrowly missing the hidden bodies as danger still lurks in the shadows. The investigation stalls for a moment, buying the killers time to cover their tracks. The town remains oblivious to the full extent of the carnage.

Brooke is captured and tied down in the junkyard, where Darryl pours liquid lye on her and lights her on fire. The brutal act demonstrates the brothers’ relentless cruelty and their willingness to destroy anyone who threatens their hold on the hideout. The survivors’ fear deepens as the environment grows even more lethal.

Amy and Jason are abducted to Ambulance 37 and brought to the junkyard, where Darryl terrorizes Amy as Jason fights Jon Roy. Amy discovers her mother’s body strung up in a mock crucifixion and finds their lobotomized father Jimmy in a display case, triggering a surge of chilling flashbacks about their family’s past. The revelation links the current horror to the murders decades earlier.

Jon Roy recalls a childhood betrayal and decides to kill Darryl to spare Amy, turning on his brother in a desperate act of protection. The act breaks the killer’s bond and grants Amy a desperate chance to escape the yard. The fragile balance of power shifts in the brutal landscape.

Amy and Jason stagger along Ash Pine Rd, nearly struck by a police car, but Jason pulls Amy to safety. Ambulance 37 rounds the corner at high speed and slams into them and the officer in a final, chaotic crash. The screams fade into the sound of sirens as the cycle of violence appears to end only in tragedy.