Tate, a master of the martial arts, sells his skills in the market place of crime. He is a cold-blooded killer, his motivation is obscure, and his only emotion is pleasure in his work. The Homicide squad have a race against time to get to him before more people are harmed. Tate is eventually captured by Sen. Det. Deegan, who is also quite accomplished at the martial arts. Notes: Scriptwriter Jim Simmonds, who holds a black belt in Taekwondo, had been wanting to write a Homicide episode featuring the martial arts for three years. His opportunity came when Dennis Grosvenor, a brown belt in karate, joined the cast. In addition to writing the script, Simmonds choreographed all the fight scenes, and was eventually cast in the role of Tate.