Events at the almshouse take a bizarre turn and Carver and Ackland are tasked with investigating a murder. However, their own personal relationship begins to cloud their judgement over the involvement of their prime suspect, and the pair are soon at loggerheads. As the undercover operation in the club intensifies, Best and Ashton are given the opportunity to join the team, but Ashton blows an initial first interview with the club's manager, leaving Best to pick up the pieces. Klein is forced to prove to Rickman that he hasn't regained his old habits. Webb and Meadows finally manage to track down Anne Merrick, Chandler's girlfriend at Hendon, but receive a nasty surprise when they interview her.