Four years earlier, Rikki Stanfield lied to Ali about what she remembered the night that she and her best friend, were attacked. When Rikki starts to remember what really happened she begs Ali to re-open the case.
While enjoying a day off, Ali receives a tip from a lawyer about Randy Benjamin, a young man who had assisted in the rape and murder of three men years earlier. Attorney-client privilege prevents him from saying much, but he points Ali to Stanley Caron.
While Ali and Logozzo investigate the murder of retired teacher, they are surprised to learn that, after a stroke, his behavior had changed drastically, and he'd gone from being a mild-mannered school teacher to a sex fiend who went to swinger parties.
When a man comes to the station with a box containing a blood-stained dress with a bullet hole, Ali and Tony investigate a possible murder on the college campus in 1964. They discover the victim wasn't who she appeared to be.
When a Chinese teenager is found hanging in a jail cell the morning after being arrested, Ali and Tony investigate the similarities with another jail cell hanging 20 years before, when the police department was being investigated for brutality.
Ali and Tony check out the story of an informant who claims he knows who killed a tow truck operator in 1991. Their case turns on the testimony of a woman who was a drug addict then, and who is now a hyper-religious housewife.