Erotic horror thriller. Down-on-his-luck former football player Jarrett (Marc Blucas) is drowning his sorrows at his friend's bar when a beautiful woman, Nora (Nicki Aycox), walks in. The two end up spending the night together at Jarrett's home, and during their night of passion Nora bites Jarrett, drawing blood. After she leaves, Jarrett feels himself beginning to change. His basic animal instincts appear to be heightened, and he soon discovers that Nora has infected him with a strange predatory virus that thrives on human blood.