When Rusty Mason, scion of one of Nantucket's oldest and wealthiest families, is found dead in a flooded cranberry bog one foggy fall night, 32-year-old detective Meredith Folger is faced with her first murder case.
Merry is the daughter of the local police chief and granddaughter of his predecessor; her father is a strict boss and Merry feels pressure to go the extra mile to prove her promotion to detective isn't just nepotism. But the Mason murder is a demanding first test.
Merry's investigation brings to light all the tensions that plague the tiny community of Nantucket: the decades-old grudges; the skyrocketing real estate that only wealthy weekenders can afford; the resentments of the old Nantucket families who are barely keeping their homes and heritage fishing businesses alive. But Merry knows the island and its politics in a way only a local can.