A couple named Adelaide and Gabe took their children to the seaside for vacation. This was once Adelaide's childhood entertainment place. After a day of playing with the Taylor family at the seaside, Adelaide was increasingly unable to get over the pain of the past, and he increasingly felt that a disaster was about to happen to his family. At night, the family even saw four people standing hand in hand on the driveway, and it seemed that more strange things were waiting for them.