Dr. Ann McBride, a dedicated geriatrician, runs the morning tides of the Lost Coast to escape the trauma of her job. But peace is shattered when she discovers the body of a teenage girl, holding a half-eaten blackberry scone from the town’s bakery, "The Nook." The police are quick to label it an overdose, but Ann’s medical eye sees something else: a heart stopped cold by a poison that belongs in a prescription bottle, not a pastry. The evidence points dangerously close to home—directly to Meg Sullivan, the bakery’s owner and Ann’s best friend. As the mist rolls in, Ann races to clear Meg’s name, only to uncover a web of extortion, stolen medication, and desperation that threatens to swallow the town whole. With a ruthless gang leader circling and the police closing in, Ann must use her diagnostic skills to separate lies from truth. But when the diagnosis points to the person she trusts most, Ann is forced to make an impossible choice: save her friend, or serve justice.