Baxter McCracken, a practical harbormaster with a cat and a lint roller, becomes an amateur investigator at a small Florida marina after a pleasure boat explodes and a young woman is found dead aboard. As he tracks clues - a soggy cell phone, hidden drugs, counterfeit bills, fraught relationships - the quiet harbor peels back to reveal dangerous secrets, divided loyalties, and a suspect list that includes a doctor, the marina owner, and a guilt-ridden dockhand.