Over the haunting opening credits, we glimpse an abandoned summer camp known as Camp Arawak during the fall. The narrative takes us back to the summer of 1975, where a family consisting of divorcée John Baker and his two children, Angela and Peter, are enjoying a day out on a serene lake near a summer camp in upstate New York. Tragedy strikes when their small boat capsizes, prompting John and his children to swim back to shore, where John's lover Lenny is calling out to him. In a devastating turn of events, teenagers Marianne and Craig, who are towing a water skier named Dolores, unintentionally collide with the family in the water, leading to the drowning deaths of John and Peter. The only survivor, Angela, is sent to live with her quirky aunt, Dr. Martha Thomas, alongside Martha's son Ricky.
Fast forward eight years after the tragic incident, and Angela (played by Felissa Rose) is now a 14-year-old girl living with Ricky (portrayed by Jonathan Tiersten), now 15, as they arrive at Camp Arawak under Martha's care. She advises them to keep the circumstances surrounding their physical exams a secret. Upon arriving at the camp, they encounter the creepy head cook Artie (Owen Hughes), who leers at the children. Ricky introduces Angela to his best friend Paul (Christopher Collet), who starts showing her around the camp. However, Angela remains withdrawn and aloof, silently backing away from Paul’s friendly advances. Ricky, eager to reconnect with his former girlfriend Judy (Karen Fields), is met with indifference.
Angela's introverted demeanor renders her an easy target for bullying, particularly from Judy and counselor Meg (Katherine Kamhi). During lunchtime, Angela is offered food by the sympathetic head counselor Ronnie (Paul DeAngelo). Tragically, she is soon trapped in the kitchen with the predatory Artie, who attempts to assert his control over her. Thankfully, this encounter is disrupted when Ricky discovers them and rescues Angela, causing Artie to suffer grievous injuries while trying to escape. However, the camp owner Mel Costic (Mike Kellin) downplays the incident, labeling it an accident to maintain the camp's reputation.
The following day sees tension continuing to brew as Ricky and his friends engage in a baseball game against older boys, which results in growing animosity toward Ricky. At night, during a dance, Angela is once again cruelly taunted by Kenny (John E. Dunn) and Mike, escalating into a chaotic confrontation where councillors intervene.
As the plot unfolds, Angela is burdened by a secret that causes her trauma to resurface. Kenny's fate is sealed when he finds himself under an overturned boat, encountering a threatening presence that leads to his demise. The camp's atmosphere turns palpable with escalating violence, mirroring Angela’s internal struggle. Her relationship with Paul blossoms with innocent conversations, but as they grow closer, past traumas haunt Angela, making it difficult for her to embrace love.
Angela's hardships culminate in a shocking series of accidents, as the jealous Judy, compelled by insecurities, engages in a seductive game with Paul, further distancing him from Angela. As tensions rise, seemingly unconnected deaths plague the camp, leading to suspicion rife among the staff and children alike. Each incident heightens the mystery surrounding Angela, particularly as she continues to be treated cruelly despite her tragic backstory.
With the social events at the camp spiraling out of control, and a mass panic set in motion, the haunting reveal comes when the authorities discover Angela in an unsettling scene that exposes the violent impulses she harbored all along. As the horrific truth is revealed through flashbacks, it becomes clear that Angela is both the victim and the perpetrator, transformed by her traumatic past into something unrecognizable. The film closes on a chilling note as Angela, bearing her true identity and a harrowing symbol of her lost innocence, confronts her fate with a piercing hiss, leaving audiences in sheer astonishment.
