Geneva's Lac Leman seems the perfect antidote for Aaron and Rebecca's troubled marriage. Romantic, magical, full of promise. Or does the shimmering water mask an evil waiting to surface? As doubt and despair twist their hearts, a mysterious and soul-destroying force takes hold and enters Aaron and Rebecca's dreams. A dead man, Marcello Mansini, relives his depraved past, forcing them to play a dangerous game. Dreams dissolve into nightmares and the present is violently betrayed . . .