The Point of Vanishing

S3 E3: Lewis and Hathaway are called in to investigate the death of a man found beaten and drowned in his bath. By the body they discover a postcard bearing the cryptic message ‘It was no dream’... Taking the name Stephen Mullan from the victim’s work I.D Hathaway learns that Mullan was a religious fanatic and ex heroin addict, who had recently been released from prison after a drink driving incident.