Girl In the Closet is inspired by true events and tells the story of 10-year-old Cameron. After her mother has an aneurysm, Cameron is adopted by her Aunt Mia, who already has a husband and daughter. Shortly after moving in, Cameron begins hearing strange voices coming from a locked door in the basement at night. She discovers what's behind the door: people chained to the wall, victims of her Aunt's plan to steal their benefit checks. Soon, Cameron is imprisoned in the basement herself, where she remains for the next ten years while authorities assume she is missing.