Terry and Ann are two "swingers" who spend the night in a spooky old house, where they're subjected to bizarre sexual experiments by Mr Bradley and his deranged sister.
Amanda's deathbed request to her son, John, was for him to destroy all the lab notes etc. from her last experiment. She also blurts out he had a brother. At the funeral John meets Melissa, who claims to be his mother's biggest fan. Together with some of John's friends they go to Amanda's house, but none are prepared for what they find there.
When a group of misfits is hired by an unknown third party to burglarize a desolate house and acquire one rare VHS tape, they discover more found footage than they had bargained for.
A hedonistic man finds a mysterious puzzle box that summons a group of gruesome beings known as the Cenobites. These otherworldly entities open the doors to a dominion where pain and pleasure are indivisible.
In town for a job interview, a young woman arrives at her Airbnb late at night only to find that it has been mistakenly double-booked and a strange man is already staying there. Against her better judgement, she decides to stay the night anyway.