Ginger is 16, edgy, tough and into staging and photographing death scenes along with her younger sister Brigitte, 15, with whom she's made a pact to die together. On a full-moon night in early October, and the same night that she has her first period, Ginger is bitten by a werewolf and within a few days, her body and temperament begin to experience some serious changes. As Ginger gets scarier and with Halloween and another full moon approaching, Brigitte races against time to find a cure for her sister with the help of Sam, a local doper.