When the detectives attend an extravagant costume hire shop, they find the shop's young security guard dead.

Tessa and Steve are drawn into a web of mystery and intrigue when legendary paleontologist Dr. Charlie Minogue is murdered, and his attractive assistant disappears.

A mutilited body is found near a church, with identical markings to the victims of a serial killer 15 years ago- Thorne's first case. Experiencing a sense of deja-vu, Thorne heads the investigation. Has the killer returned, or is this a copycat crime?

Tessa and Steve uncover a web of intrigue surrounding businessman Brian Hart's horrific death when he is killed as he commutes to work by train when a letter bomb concealed in a card explodes. Tessa and Steve are confronted by a bewildering array of suspects and motives to finally apprehend the person they believe to be the killer, only to realise at the last moment that they only have it half right.