Stream Behind the Door of a Secret Girl Online Free – Watch Full Movie from Home at 123Movies. . Sammy is a teenage cutter living with her meth addicted mother in a trailer on the Indian Ridge Reservation. Her mother's boyfriend is a drug dealer using the reservation as a cover for his drug trafficking. David, Sammy's best friend, is a foster youth and helps her to escape from this dysfunctional life she's had to endure since her father died.