After an accident on a winding road, four teens make the fatal mistake of dumping their victim's body into the sea. But exactly one year later, the dead man returns from his watery grave and he's looking for more than an apology. To Jill Johnson, it was the perfect babysitting job. The parents were away. The fridge was stocked. The children were tucked into bed. But then the phone rings and an ominous voice asks, "Have you checked the children?"...