On vacation with his daughter on the New England coast, Dr. Hugh Westlake is enjoying the sun, the sea, and the fishing. It being September, the inn where they're staying is almost empty, except for a few other guests. But the peace is shattered when a woman's body is found strangled on the beach, with a red circle drawn around a mole on her face.

The morbid scene becomes more so when she's identified as the governess of a family staying at the inn. Hugh gets drafted by local law enforcement to help with the investigation. He uncovers dysfunctional parents, a creepy mortician, a handsome lifeguard, and a woman painter-all with secrets to hide. Not to mention local legends. When another woman is murdered, with another mole circled, Hugh realizes there's a madman on the loose. And he must tie up the loose ends of crimes past and present to net a most diabolical killer.