My review was written in May 1982 after a screening on Manhattan's 42nd St.:
"Dr. Butcher M. D." is the U. S. release (with some post-production alterations) of a 1980 Italian film originally titled "Queen of the Cannibals" and geared towards the explicit gore market. Canny marketing by Terry Levene (the M. D. of the title is spelled out as "Medical Deviate" on posters and ads) should attract fans who like their horror of the butcher-shop variety.
Filmmaker Frank Martin (an Italo Western vet who uses an Anglicized nom de film) pilots an absurd plot as an excuse to pour on the gore. Pic opens with some Manhattan-locationed scenes of Asiatics robbing hearts from corpses in local morgues. A doctor-anthropologist Lori Ridgway (Alexandra Cole) has her ceremonial knife stolen from her collection, and matching its inscription with the tattoos and the corpse-robbers, she deduces that native rites involving human sacrifices and cannibalism are in effect. She and a scientist (Ian McCulloch) mount an expedition to the Pacific island of Kito to investigate the local sect.
On the island their party encounters Dr. Abrera (aka Dr. Butcher, played by Donald O'Brian), a mad scientist in the Dr. Moreau tradition, whose work in human transplants has created many disfigured zombie-like people. Heroes also have to contend with numerous natives who are cannibals and very aggressive. They kidnap Lori, apply body paint and prepare her for sacrifice to their gods. She's saved when the cannibals hail her as a magical being, while McCulloch escapes from the operating table to wipe out (with the cannibals' aid) Dr. Butcher and his henchmen.
Gore makeup is not very realistic, but the plentiful dismemberments, scalpings and acts of cannibalism on camera will be appreciated by steady fans of this sort of thing, e.g., patrons of the 1980 Jerry Gross release "Zombie", which also starred Ian McCulloch. Acting is wooden, with McCulloch and Alexandra Cole almost comically blase as they stroll along ignoring island terrors. Biggest crowd-pleaser occurs when McCulloch jabs an aggressor in the face with a handy outboard motor. Blonde Cole displays a magnificent undraped (and painted) body for the camera in the tradition of Ursula Andress ("Slave of the Cannibal God") and Bo Derek ("Tarzan, the Ape Man").