The story of one of the most infamous cases in UK criminal history, that of serial killer Dennis Nilsen. Told through the prism of three men, the series explores the personal and professional consequences of coming into contact with a man like Nilsen.
David Tennant
Dennis Nilsen
Daniel Mays
DCI Peter Jay
Jason Watkins
Brian Masters
Ron Cook
DSI Chambers
Faye McKeever
Linda Jay
Barry Ward
DI Steve McCusker
Ben Bailey Smith
DC Brian Lodge
Alex Bhat
DS Jones
Jay Simpson
DS Chris Healey
Bronagh Waugh
Charlotte Proctor
Joel Morris
Tim Wells
Laurie Kynaston
Carl Stottor
