Loving husband. Devoted father. Ruthless killer.

The true story of Richard Kuklinski, the notorious contract killer and family man. When finally arrested in 1986, neither his wife nor daughters have any clue about his real profession. In the 1960's, Richard Kuklinski is working as a porn film lab tech until his mob bosses persuade him to change his career into that of a contract killer. For years, Kuklinski gains a reputation for cold blooded professionalism even as he raises a family who are kept in the dark about his true career. Unfortunately, mob politics ultimately forces him to secretly work independently with the psychopathic Robert 'Mr. Freezy' Pronge. As much as Kuklinski tries to keep his lives separate, circumstances and his own weaknesses threaten a terrible collision as the consequences of his choices finally catch up to him.