A dark and dramatic adaption of Edgar Allan Poe's classic story. Laurence Payne stars as Edgar Marsh, a shy and awkward librarian who becomes obsessed with his new neighbour Betty Clare. Despite Marsh's infatuation and determination to win her affections, Betty Clare falls for Marsh's close friend Carl Loomis, a charismatic man of the world. Discovering their affair, Marsh's obsession turns to murderous rage and he kills Loomis. Consumed with guilt Marsh's mind begins to crumble as the sound of Loomis's still-beating heart haunts his every waking hour.
