Richard ‘The Iceman’ Kuklinski was a mafia hitman who claims to have killed up to 250 people, either individuals who had a contract out on their lives or potential witnesses that he killed in order to ensure his continued freedom. He was convicted of five murders and sentenced to serve two consecutive life sentences for his crimes. In 1992 he was the subject of the HBO American Experience episode The Iceman Tapes: Conversations with a Killer, in which he talked about his life and crimes.
In this second 2001 HBO documentary, The Iceman Confesses: Secrets of a Mafia Hitman, Kuklinksi once again opens up about his life and crimes and goes into further details about his methods, he also makes some shocking confessions about some previously unsolved murders. In 2003 he appeared in front of cameras for a third and final time for The Iceman and the Psychiatrist, in which he meets with leading forensic psychiatrist Dr. Park Dietz and allows himself to be analysed and diagnosed on camera.