Zombie Cop (1991)

During a drug raid a narcotics officer confronts a strange Voodoo priest named Dr Death who is chanting The officer and the priest shoot it out and they both wind up dead Later the two rise from their graves and return to the land of the living as zombies Dr Death is resurrected with a new mission in mind to take over the world The zombie cop enlists the aid of his old police buddies to stop the mad priest