Autumn on Nantucket Island. It was supposed to be the start of a quiet off-season until a mysterious shipwreck washes ashore, setting off a series of bizarre murders that force Detective Jake Bartlett to turn to the FBI for help. But it's not long before Jake realizes the FBI has its own agenda, and he becomes suspicious of the enigmatic Agent Dean Kern. Meanwhile, marine archeologist Dr. Rachel Anders has discovered evidence linking the present day murders to the events-occurring nearly 200 years prior-surrounding the fate of the crew of the whaleship Mariner. And as the events of the past are revealed, Jake and Rachel must join forces to uncover the horrifying legend of the Nameless One-and his insatiable need for human hearts.