Anna seduces her sister's boyfriend, sparking a whirlwind of passion and intimacy as they share tender moments and anticipate a night of reckless abandon in the wilderness. As their desires reach a boiling point, Anna seizes an unexpected opportunity to exact brutal revenge on behalf of her deceased sister. With cold calculation, she draws a knife and silences her lover's pleas with a fatal slash to his throat, proclaiming "my sister died for you, so you will rot in hell for me!"