Henry goes undercover in Bath to investigate the local constabulary, who are using a serial killer to mask their errors.
Henry Crabbe: Richard Griffiths Margaret Crabbe: Maggie Steed Freddy Fisher: Malcolm Sinclair DC Connor: Georgia Mitchell Dl Walker: Tim Dantay DCS Willis: Paul Kember DC Fine: Roger Morlidge Modiano: Joseph Alessi Steve: Joe Duttine John: Ashley Russell Nicola: Samantha Janus Henderson: Nick Raggett Higgins: Arthur Kelly Reagan: Liam de Staic Watson: Lucy Cohu DS Foster: Lucy Allen
