After a recent rape is linked to two unsolved attacks at a chocolate factory, the team examines all three cases and discovers even more dark secrets. Meanwhile, Gerry enlists Sandra's help to quit smoking.

Eight years prior, fashion desighner Ritchie Levene was stabbed to death. There were plenty of suspects, but no evidence. On the eve of a retrospective exhibition of Levene's work, the team takes another look at the crime.