A murder that won't stay buried, a passion that can't be extinguished. Jean (Catherine McCormack) and Thomas (Sean Penn), a couple on the edge of their marriage attempt to rekindle their relationship on a sailing trip with Thomas' brother Rich, and his sultry girl-friend Adaline (Liz Hurley). However, Jean becomes tortured by images of the past, her husband's betrayal, and the grisly murder of 2 young girls, over a century ago. As Jean delves further into the mysterious events surrounding the Isles of Shoals, she discovers not only a link between Thomas and Adaline, but also feels a sinister connection to the murders herself. Jean must uncover the truth, or face a watery grave.