The team is prompted to re-examine a three-year-old crime when a retrospective exhibition of murdered fashion designer Ritchie Levene's work opens. The detectives learn about his tempestuous relationships with his new spouse, personal assistant, and ex-wife Sarah, who believes his brother Adrian is the killer because he had the most to gain from the death. Meanwhile, Gerry enlists Emily to help update his image. Not everyone is impressed with the results.
A motley crew of retired police officers re-opens troublesome cases that were never laid to rest.