Basic premise is a recreational cruise gets attacked by pirates before docking at an island inhabited by cannibal monks.

This movie has a paper thin premise with equally ridiculous character back stories. The acting is bad and the fight choreography is worse. There are oddly placed and blatant boob shots. Immortal zombie warriors get summoned to take on some tourists. The monks are suppose to be cannibals, but instead of the actors coming off sadistic they act insane to the point of seeming stereo-typically retarded; slacked jaw, goofy, rolling eyes, laughs non-stop; and often has hands cradled in a t-rex position. Make up is worse than your typical Halloween goer. It was made in 1982, so there is free, unironic use of 70's lingo in it. And that's just the tip of the iceberg. This movie is campy as hell and has so many things going for it. It's a fun watch either way.