On an idyllic day on the beach, Alison and her brother Kevin were rescued from a vicious shark attack by the contemplative and mysterious Daniel. For Alison's mother Diana, Daniel is a hero. For Alison's boyfriend Carson, Daniel is a threat, and his story is not very logical. Daniel charmingly walked into Diana's heart and home, but Alison became increasingly suspicious of his eccentricity and protective behavior. When Alison's family began to disappear, she realized that Daniel was not the person he was talking about, and he had a dark past with many corpses; Daniel" Before Alison belongs to him, she will not stop. Before Kevin and Diana become his next victims, she must stop him.