Leaving behind a cheating ex-boyfriend and her stressful job as an ER nurse, Darcy Cavanaugh goes on a fall foliage cruise with her best friend Marie. Lost in a sea of senior citizens, Darcy and Marie, the shipboard nurse, do their best to enjoy the free mimosas, Elvis impersonations, and nosey shipmates. But sailing the high seas is anything but fun when jewelry is stolen and a cabin steward is murdered.