A homicide detective goes after a woman-hating serial killer, who uses knives to murder his victims.
Acting
John Marley commits to karate detective with alarming sincerity
Production
NYC location shooting that reeks of authentic 1973 grime

Director
Ernest Pintoff
Trivia, insights & behind the scenes
Marketed as 'Enter the Dragon meets Dirty Harry,' this was Pintoff's cynical attempt to cash in on both martial arts and giallo booms. It failed at both.
The original poster's 'psycho-karate killer' tagline was so absurd it became a grindhouse collector's holy grail.