Fear City (1984)

In New York, the former boxer Matt Rossi and his partner and friend Nicky Parzeno run the Starlite Agency of strippers, providing girls for the strip-clubs controlled by the mob boss Carmine. Matt has a trauma since he killed his opponent Kid Rio during a fight, reason why he quitted boxing, and his girlfriend is the former addicted stripper Loretta. Out of the blue, strippers of his agency are attacked and mutilated by a sadistic killer that fights martial arts and they suspect that his competitor, Goldstein, may be the responsible. Matt meets Goldstein that guarantees he has nothing to do with the attacks. Soon one of his girls is murdered by the killer. When the killer kills Loretta's girlfriend Leila, she returns to her addiction. Meanwhile, Detective Al Wheeler and his partner suspect that Matt may have information about the killer and hunts him. When the killer attacks Nicky's girlfriend Ruby, Nicky arrives, tries to protect her and is seriously wounded by the killer. Now Matt trains box at home and rounds the streets of New York expecting to find the killer.