David Hazard wanted nothing more than to forget his renegade family and the foggy New England village "on the wrong side" of Narragansett Bay where he grew up. When sudden tragedy brings him back to Little Compton to care for his grandmother during her struggle with dementia, he discovers her fragile memories may hold the key to a bizarre mystery half a century old --- and perhaps to the sudden and brutal murder right next door.

Once Chief of Police Billy Dyer names her as a witness, Grandma Maggie's recollections become vital. But can they be trusted, especially in a town where everyone has a secret, including David himself?

The investigation stalls. Then eccentric millionaire Marcus Rhinegold's yacht disappears into the fog, bodies begin to wash ashore, and Maggie's stories come vividly to life, setting off a chain of events both horrifying and hauntingly familiar. Puritans, gun-runners, Mafiosi and a rogues' gallery from past and present converge in the mists of the bay, challenging Billy with layers of deception. On Christmas Eve, he enlists David in a daring move to uncover the many truths surrounding Fogland Point.