Magnolia - Beyond the Black Rainbow [Blu-ray]

Set in the 80's; young, mute woman, kept captive and sedated in a secluded compund by drugs and a mind control sadistic leader, manages to escape her confinement. As she tries to escape the compound, obviously hindered by lack of communication skills and terror of the search by her captors & guardians of the compound: No one to trust, no one to help.