On a trip to the German Alps with her father and stepmother, Gretchen discovers that the resort town where they're staying hides sinister secrets, as she's plagued by strange noises and frightening visions of a woman pursuing her. On a trip to the German Alps with her father and stepmother, Gretchen discovers that the resort town where they're staying hides sinister secrets, as she's plagued by strange noises and frightening visions of a woman pursuing her.