Flowers in the Attic

Flowers in the Attic is a 1987 American psychological horror film directed by Jeffrey Bloom and starring Louise Fletcher, Victoria Tennant, Kristy Swanson, and Jeb Stuart Adams. Its plot follows four youngsters who, after the death of their father, are held captive in the attic of their abusive grandmother's sprawling estate by their cruel and manipulative mother. It is based on V. C. Andrews' 1979 novel of the same name.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.