Night Swim

In 1992, a young girl, Rebecca Summers, goes out to her family pool one night to retrieve a toy boat belonging to her terminally ill brother, Tommy. While she tries to get the boat, something in the pool pulls her underwater.

In the present day, the Waller family—Ray, Eve, and children Izzy and Elliot—by place are seeking a new, permanent residence after Ray has been forced to retire from his baseball career due to multiple sclerosis. They decide to purchase a house with a swimming pool in the backyard, especially after hearing that the pool would be good for Ray’s condition. Ray scratches his hand while working to clear out the pool in the back yard. When the pool maintenance come to inspect it, they reveal that the pool is essentially self-sustaining, taking its water from an underground spring in the area.