A hurricane ravages New England, and bodies and secrets are piling up on a secluded island off Nantucket. As a Category 3 hurricane bears down on New England over the final weekend in September, a luxury yacht grounds on the shoals surrounding a deserted barrier island off the western end of Nantucket. When the Coast Guard responds, they find two people shot in the boat’s cabin, one of whom dies before reaching the hospital. Nantucket Police Detective Meredith Folger is called in to investigate—three days before her long-anticipated wedding. As the hurricane batters her beloved island and house full of wedding guests, Merry Folger struggles to unravel a tangle of false identities, missing guns, and a cargo of heroin that’s left one man in a coma, fighting to survive. But is he a victim, or a killer?