S12 E1 • Demons on Our Shoulders (1)

On Halloween, Kate Johnson is killed in her bedroom, the victim of a shotgun blast. Her husband Guy is the obvious suspect, having now disappeared. In an odd twist, the couple had been part of a television broadcast the previous Halloween where hypnotist Lee Knight demonstrated that people could be induced to do anything, including murder. The dead woman's daughter, Katherine Taylor, is convinced that the hypnotic suggestions of a year ago are what caused her father to kill her mother and that Knight is responsible. When she is found dead however, the case takes yet another turn. Meanwhile, Dalziel undergoes hypnotherapy to quit smoking.

Première diffusion : 6 mai 2007

S12 E2 • Demons on Our Shoulders (2)

As the body count continues to rise, Dalziel and Pascoe continue to focus their investigation on Lee Knight. Knight continues to maintain his innocence and says he's being set up by someone. The police uncover that most of the principals are involved in witchcraft of one sort or another. As the victims' bodies are being dismembered, they believe the killer is set to perform some type of ritual. Pascoe believes Knight is innocent and the true killer is someone who is well-known to Andy.

Première diffusion : 13 mai 2007

S12 E3 • Project Aphrodite (1)

A sunburned Det. Supt Andy Dalziel returns from his holiday in Australia and finds himself immediately investigating a murder. The dead man is Declan Roach, a researcher at the local university who was found in a university laboratory clean room. The autopsy confirms that he died from nitrogen intoxication but it is not clear at first if it was accidental or not. Roach was working under the direction of Professor Fran Cunningham, who in turn has a major contract with Aphrodite, a major cosmetics firm. She is working on a formula for a rejuvenation cream that will be nothing less than a fountain of youth and there is obviously a great deal of money at stake. Andy meanwhile is thinking of packing it in and emigrating to Australia.

Première diffusion : 14 juin 2007

S12 E4 • Project Aphrodite (2)

With a second murder to investigate, the police are no further ahead. Animal rights activists had been threatening Declan Roach and there was a good deal of tension on the team. Professor Cunningham had a falling out with him when she learned that he had signed a lucrative contract with Aphrodite. As well, it is apparent that the trials of Cunningham's fountain of youth have been sabotaged by one of the participants. Andy's hopes of immigrating to Australia hit a snag.

Première diffusion : 15 juin 2007

S12 E5 • Under Dark Stars (1)

When accused pedophile Michael Wheeler is acquitted in the murder of two teens, Det. Supt. Dalziel and DI Pascoe find themselves continuing to suspect him when another teen, the principal witness against him, disappears. Pascoe in particular is taking it all quite hard in that he had promised the parents that justice would be done. When one of the bereaved parents kills Wheeler, Pascoe decides to cover up the crime. In what proves to be a parallel case, the police find two bodies, one of a taxi and the other of a teenage girl, both of whom were murdered in exactly the same way and drained of their blood.

Première diffusion : 21 juin 2007

S12 E6 • Under Dark Stars (2)

Having disposed of Michael Wheeler's body, DI Peter Pascoe tries to over up all traces of the crime. When a homeless man discovers the body, Dalziel has little sympathy for the dead man. As the phone calls from the killer continue, Pascoe wonder if Wheeler may have been innocent but when they manage to unscramble the calls, they realize that a young woman may also be involved. Dalziel however pieces together Pascoe's involvement in Wheeler's death.

Première diffusion : 22 juin 2007