The autumn foliage is in full fiery glory on a beautiful day in the little coastal town of Rocky Point, New Hampshire. Josie Prescott arrives at the town’s renovated lighthouse to conduct an antiques appraisal and is horrified to discover the bludgeoned body of her neighbor Zoë’s beloved nephew, Frankie. The owners of the lighthouse are avid antiques collectors, and Josie soon begins to suspect that a scrimshaw tooth from their collection may be the key to solving the crime that has shaken Rocky Point, and broken her dear friend’s heart.