Most 1970s blaxploitation vehicles function as violent, sociological artifacts with soulful soundtracks. This raucous urban action-comedy delivers genuine laughs. Gravedigger Jones (Godfrey Cambridge) and Coffin Ed Johnson (Raymond St. Jacques) are rascally uptown cops, suspicious that a slick reverend is fleecing his flock. Redd Foxx and Cleavon Little spice up this streetwise caper, which includes eye-catching shots of Harlem circa 1970.