Description
After a car accident causes her to miscarry, Jane's sister Barbara recommends seeing a psychiatrist, Dr. Burton, against the misgivings of Jane's boyfriend Richard. Jane is also still dealing with the trauma of witnessing her mother's murder at a young age. The visit ends badly and Jane instead ends up confiding in her new neighbor Mary.
Mary recommends that Jane participate in a Black Mass with Mary's sect, which she does despite several misgivings. Afterwards Jane begins to experience nightmares of a strange man and starts seeing him in her waking life, making her increasingly unable to distinguish the dream world from the real one. Despite the rituals becoming more bizarre and sexualized, Jane continues to attend the sect's rituals. When the latest ritual results in Mary's death, Jane flees in horror. The strange man appears in front of her and reveals that her mother was part of the sect and that she was murdered because she wanted to leave. He also tells her that Mary was killed for bringing in a novice. Despite these warnings Jane again tries to flee by hiding out in the countryside, only for this to end with several more deaths.
Ultimately Richard, along with the police, are able to discover that Barbara is behind the Black Masses. Not only a member of the sect, Barbara wanted to take control of their mother's legacy. Fearing for Jane's wellbeing, Richard kills Barbara and Jane is taken to the hospital. At the hospital Jane has a nightmare that Richard is killed by the sect and that it is covered up by the police, as their head is a sect member. When they return home they are attacked twice by people related to the sect, the second of which is by the leader. Richard throws him off the roof, seemingly ending the nightmare forever.
