Girl in the Attic

Kelsey's dedication to honoring her late mother through marathon training and sharing her progress online catches the attention of Billy, a kind-hearted grocery worker who takes care of his disabled mother, Debbie. However, Billy's admiration for Kelsey quickly turns into an unhealthy obsession. He kidnaps her and keeps her hidden in their attic, exerting control over her for years. When Debbie finally uncovers the horrifying truth, she teams up with Kelsey to fight for their survival against Billy's twisted grip.