In 1950s England, sailor Harold Guppy arrives in a small seaside town looking for his estranged brother. After a brief reunion, Harold finds a room for rent in the house of Mrs. Beasley, her meek husband and their teenage daughter, Joyce. It's clear that Harold has a troubled past, but his future is about to get more perilous yet. Despite the rosy surface, Harold soon finds himself in a tawdry sexual tug-of-war that won't end well.

Martha Travis is a medium who makes contact with spirits "on the other side" and connects them with their loved ones still alive, in public performances. Trouble begins when she gives a message to Mary Kuron from her husband, Tom. But Tom isn't dead... yet. And Martha not only knows he will die, she also knows who killed him. And the murderer knows she knows...