The story of Joanna, a 14-year-old girl who feels pressured by her peers to lose her virginity. The story, told primarily from her point of view, follows her as she self-destructs, becoming involved in a world of sex, drugs and betrayal. Including graphic and sometimes violent underage sex scenes, the film portrays an occassionally exaggerated but nonetheless disturbing and thought-provoking view of teenage sexuality.

Local teenagers are holding a Halloween party at a supposedly "haunted" old mill, but find out that one of the partygoers who is dressed as an alien is actually a real alien.