The police are on high alert when a nanny reports that her car has been stolen by carjackers with the kids she was minding still inside. When a bank manager turns up at St Hughs with mysterious injuries, an investigation leads to a sordid S&M dungeon in the basement of a tattoo parlour, and MIT's new main suspect for the serial killings - Shane Pellow. DC Eva Sharpe manages to stop an ex-policeman from running ghoulish serial killer tours in Sun Hill, and she and Okaro go undercover to catch the carjackers who pull out a gun but are soon captured. The rivalry between PCs Des Taviner and Gemma Osborne reaches a new high when Osborne plays a recording of Taviner over the station loudspeakers - a trick Taviner himself had once played on Vicky Hagen. A distraught Acting DI Nixon finds her daughter has run away from home after an argument.