The discovery of the mutilated corpse of a boy prostitute leads a psychologist to link the crime to the earlier murder of a child patient. He enlists the help of his college friend, a newspaper illustrator, to gather evidence in the case.
Kreizler looks for other victims of the serial killer. Sara brings in a vital clue. Kreizler treats Sara, Moore, Marcus and Lucius to Delmonico's and informs them they will be teaming up to catch the killer.
Use of the innovative new procedure of fingerprinting leads the team to discover crucial evidence is missing. Kreizler and Moore interview a witness to find out what happened to Moore at the brothel.
Sara and Kreizler posit on the ability to kill. Moore goes on a date. Byrnes and Connor eye potential suspects. Roosevelt is under scrutiny from the public.
The team build a profile for the killer. Moore and Sara share an intimate moment. Kreizler gets advice from an old mentor. Roosevelt finally takes action.
The team set a trap to catch the killer. Moore visits a friend. Kreizler is filled with self-doubt over the investigation. Roosevelt is part of an event with the city elite. Sara looks into Kreizler's past.
Kreizler and Moore follow a new lead. Sara visits a hospital which forces her to confront her past. Cyrus recovers from his injuries. Byrnes and Conner are plotting against the team. Marcus and Lucius follow a clue.
Kreizler and Moore travel to DC. Sara goes rogue in her pursuit of the truth. Lucius confides a secret to Marcus. Byrnes and Connor tighten their stranglehold on the investigation.
Kreizler confronts the demons of his past. Moore tells Sarah the truth. Conner takes matters into his own hands. The team closes in on the killer as time is running out.
