Innovative evidence leads the team to discover a crucial element in the case has gone missing. Kreizler and Moore interview a witness to find out what happened to Moore at the Brothel. Sara attempts to live in a world outside the investigation. Kreizler challenges them to look within themselves.
Set in 1896, a series of gruesome murders of boy prostitutes has gripped New York City. Newly appointed police commissioner Teddy Roosevelt calls upon Dr. Laszlo Kreizler, a criminal psychiatrist, and John Moore, a newspaper illustrator, to conduct the investigation in secret. Joining them in the probe is Sara Howard, Roosevelt's headstrong secretary, as well as twin brothers Marcus and Lucius Isaacson, both detective sergeants in the New York City Police Department (NYPD).