After a party at Bodie Island's Lighthouse Library, librarian Lucy Richardson is ready to curl up with her cat and a good book. But her reading is cut short when she notices a small boat crash into the coast, led by some mysterious lights on the shore. The two shipwrecked seafarers survive the ordeal, but one of them shows up dead ashore a few days later. Lucy finds herself again roped into a murder investigation: navigating a sea of suspects, all of whom have a motive. She has a feeling that finding the killer won't be easy.