with 1 episodes premiered on January 7, 2008

with 6 episodes premiered on November 14, 2002

We meet Tony, a psychologist that gets inside of the minds of both killers and victims to aid the police in solving gruesome serial killings in Northern England.

with 4 episodes premiered on February 12, 2004

Season 2 continues with Tony and Maggie, and introduces DCI Carol Jordan.

with 4 episodes premiered on February 21, 2005

with 4 episodes premiered on September 20, 2006

Season 4 opens with a new DI, Alex Fielding.

with 4 episodes premiered on July 14, 2007

with 8 episodes premiered on September 12, 2008