The result of the operation transforms Krellman's son into a deformed and mutated man-ape hybrid, taking on the characteristics of the organ's donor, who immediately goes on a bloody rampage.

Both films' plots concern a mad scientist who transplants a gorilla's heart into his dying son, saving his life but transforming him into a monstrous, ape-like creature who embarks on a rape and murder spree.

[4] On a positive note, the review said that the film was "enhanced by Cardona's habit of highlighting dramatic moments by dropping in the odd expressionistically-tinged shot with cavalier disregard for matching photographic textures".

[5] Graeme Clark from The Spinning Image gave the film 5 out of 10 stars, writing, "As a curio it is worth seeing, but only for its regular incidents of ridiculousness".

Concluding his review, Jane wrote, "A completely bizarre mish-mash of wrestling, gore, bad monster make up and mad scientist fun, Night of the Bloody Apes is a blast from start to finish.