Life as a lighthouse keeper on a remote Scottish island isn't always the most exciting. Especially since she split with her husband, Malcolm. Yet, Heather loves her job, her friends, and her life on Bishop's Isle. Until, one day, strange...things start to wash ashore. Dangerous things she has never seen before. Frightening things that nobody else on the island can explain. Now, Heather and the rest of islanders must overcome a whirlwind of troubles and use her lighthouse to try and signal for help, and hope against hope that somebody sees her, and the island's, desperate plea in time... Can they reach safety? Or will they be overtaken by the Undead...?