Robert Bridge is a psychology lecturer, grieving the loss of his young son Josh, who was killed in a car accident three years ago. A specialist in the study of psychic mediums, Robert is invited to an 'evening of clairvoyance' where he meets Alison Mundy. Reluctant and cautious, she is a far cry from the fraudulent psychics that sceptic Robert is used to. Alison is different. Ever since she was a child she has seen spirits and, after a near-death experience, they have taken over her life. Driven by a compulsion to help those around her, Alison seeks to resolve relationships torn apart by death.