Secrets in the Water (2020)

Inspired by a true story. When Mia’s body washes ashore, her mother, Laura, enlists the help of Mia’s best friend, Bailey, to figure out who killed her daughter. Together, they narrow down the suspects to a secret boyfriend and a classmate Mia rejected. As they further investigate, they find Mia’s secret boyfriend dead along with a note confessing to Mia’s murder. But when the police call Laura with new evidence, the real killer may be closer than she thinks.