Martha Armstrong has started again - new city, new home, new future. Yet she's troubled by her partner, Will's, obsession with the paranormal and an unwelcome face from her past. Troubles which threaten the happiness she thought she had found. Her friend Gabriel McKenzie, a psychic medium, is troubled too - disturbed by ghosts he suddenly cannot see and haunted by one he can't escape. Who is the strange intruder that leaves him mysterious messages in his apartment and watches him sleep at night?