Amanda Burton (Commander Clare Blake)Matthew Marsh (DCI Mike Hedges)Nicholas Jones (DCS Les Branton)Martin Walsh (Graham Warner)David Calder (George Hart)Robert Wilfort (DI Jeff Dunn)Terence Hillyer (Eddie Myers)Gillian Goodman (Gina Moore)Anna Farnworth (Maddie Engel)Hugh Bonneville (James Lampton)Clint Dyer (Murray Dickson)Jake Abraham (Tony Farmer)Paul Brightwell (DS Brian Hall)Poppy Miller (DC Carol Browning)Nigel Hastings (Tim, TV Producer)Suzanne Bertish (Vivian Newburgh)Stanley Townsend (David Sperry)Lizzy McInnerny (Sara Blake)
Commander Clare Blake has risen to the top of her profession in the male-dominated Metropolitan Police Service and is now the head of the serious crimes unit. Some years previously she arrested James Lampton for murder. He was subsequently sentenced to life in prison but is now out on parole and is a successful author with a best-selling book. Blake's colleagues however, especially DCI Mike Hedges, believe Lampton is responsible for another murder and are out to prove his guilt. Things become complicated when Blake and Lampton become intimate and the question arises whether he is being honest with her or is simply a master manipulator.