In the north of England, single women are beginning to disappear from weddings. A pattern soon becomes clear: Someone is crashing the festivities and luring the women away --- only to leave the victims’ bodies in their own burned-out cars in remote locations. Psychologist Tony Hill and former police detective Carol Jordan are called upon to investigate, but this may be the toughest case they’ve ever had to face. Meanwhile, Detective Sergeant Paula McIntyre and her partner Elinor must deal with a cruel cyber-blackmailer targeting their teenage ward, Torin.