Frank Reinhart thinks his hardest task is plucking up the courage to propose to Nathan, his lover, until an ancient evil is disturbed on a remote island. Called in to investigate strange deaths, the crewmembers of the Sea Vixen find they are facing a powerful preternatural adversary--a centuries old demonic creature released from its prison. A way must be found to prevent the evil escaping from the remote island into the world at large. But in answering the call for help, Frank also finds himself vying with the beast for the life and soul of his young lover.