BEHIND LOCKED DOORS

While attending a party with her workmate Terry Wilson at an isolated barn, Ann Henderson is assaulted, but is saved in the nick of time by Mr. Bradley. Ann and Terry decide to leave, ditching Ann's boyfriend, but find themselves stranded when their car is inexplicably out of gas. They are advised by a strange man who happens to be walking past that there is a nearby house whose owners may be able to help.

Arriving at the house, the two girls discover the owners to be Mr. Bradley and his sister Ida. With the phone out and the Bradleys' car being serviced, the girls accept the Bradleys' offer of dinner and a warm bed for the night. The girls comment on the isolation one must feel living so remotely and Ida agrees; apparently, she has only been there for two years since her brother retired from his successful career as a mortician, and is still not used to it. The seemingly kind offer of a night's rest soon becomes unsettling when the girls discover bars on the guestroom windows, their door locked and a closet full of odd-sized women's clothing. With no option but to stay put, the girls try to sleep. During the night, Ann rejects Terry's sexual advances, but the two remain close to each other while stuck in the unnerving situation.

The following day, the girls try to leave but are prevented by the Bradleys and their assistant, the strange man they first met. They are subjected to the sexual experiments of the deranged siblings. When Terry attempts to escape again, the girls are shown a warning of things to come in the form of embalmed bodies of girls that the Bradleys had previously punished. Determined to not become victims, Ann and Terry concoct a ploy to overpower their captors. The Bradleys are beaten and the girls escape, during which the monument room of embalmed women is set alight and the previous victims' bodies are seen to take their revenge from the beyond by taking their murderers with them into the blaze.

Ann and Terry take flight, running back to their location from the previous day. In the final scene, Ann and Terry attend a party at a very familiar looking barn. Terry seduces a young woman and Ann walks off hand-in-hand with her original assailant.

Ann and Terry overpower the Bradleys, set the embalmed victims' room ablaze, and escape, while the bodies of previous victims seemingly take revenge on their captors. The film closes with Ann and Terry returning to a familiar party, resuming their swinger ways.

The ending blends exploitation horror with poetic justice, as the girls not only defeat their tormentors but the previously victimized women exact supernatural retribution. The final scene, with both women returning to their libertine lifestyle, suggests a cycle of risky behavior—raising questions about trauma, agency, and the thrill of transgression.