Hannah plays DI Jack Cloth, who is called in to investigate an apparent series of serial killings alongside his new partner, DC Anne Oldman, described as a "plucky, no-nonsense sidekick". Playing with the cliches and conventions of British police dramas, subplots include Cloth dealing with visions of his dead wife and the bisexual DC Oldman coming to grips with her feelings for both her female fiancee and Cloth.
A sexy female rookie, Newblood, has joined Cloth's team. At her first crime scene the team discover the body of Cloth's Brother, Terry Cloth, Cloth traces Terry's past back to a remote therapy centre, "The Healery", but Cloth belives this is a cult and suspects Vull, the sinister leader, of murdering his brother.
Whilst Vull is being questioned down the station, another shooting occurs in the City of Town. And a case that was already uncomfortably personal for Cloth becomes personaler as he discovers the next victim is an ex-girlfriend. There is a serial killer hunting down people who have a personal connection to Cloth meaning Oldman's life is in danger. Can Cloth save Oldman? Can Cloth save himself?