Massage Parlor Murders! (1973)

A deranged, ferocious killer terrorizes the red-light district of Times Square in New York City by savagely bumping off the lovely young ladies who work at massage parlors located throughout the area. It's up to grouchy veteran detective Rizotti and his younger, more cheerful partner O'Mara to figure out the maniac's identity and apprehend the fiend before he strikes again.