Killer's Island (The Maria Wern Series)

The White Sea-Lady myth is said to be as old as the ancient Swedish island Gotland has been inhabited. It tells the story of a young bride who drowned on her wedding night and returns as a ghost to lure men into the watery depths. This legend resurfaces when a nurse is found murdered in a wedding dress. Detective Inspector Maria Wern investigates, but it becomes clear that the police are also under observation by a seemingly pervasive killer.