Criminal Minds (2005)

S13E10 Submerged

Title: Underwater Secrets Plot: After a string of mysterious murders linked to backyard swimming pools surfaces in California, the BAU team embarks on an investigation to uncover the identity of an elusive suspect with a complicated history. As they delve deeper into the case, they confront the chilling truths that lie beneath the surface, all while racing against time to prevent further tragedy.