A woman's alter ego emerges after years of dormancy to exact revenge on her unsuspecting boyfriend and his mistress. A woman's alter ego emerges after years of dormancy to exact revenge on her unsuspecting boyfriend and his mistress. A woman's alter ego emerges after years of dormancy to exact revenge on her unsuspecting boyfriend and his mistress. A woman's alter ego emerges after years of dormancy to exact revenge on her unsuspecting boyfriend and his mistress.