Deadly Life of a Ninja(1983)

A businessman and his sister-in-law are targeted for assassination by a band of evil ninjas and their vicious leader (Yasuaki Kurata). The ninjas are committing bizarre murders all over the city, and the police can't seem to pick up their trail -- so they call in ninja hunter and Kendo master Mr. Chow. To take down the silent killers, Mr. Chow will have to fight against incredible odds in this campy ninja classic.