The film involves Keiko (Rina Takeda) who is the daughter of a famous sushi chef.

A Komatsu researcher arrives intent on revenge by creating a serum that turns fish on rice into killer sushi.

[2][4] In a review for Dead Sushi and Zombie Ass: Toilet of the Dead, horror magazine Fangoria gave the film a 2 and a half rating out of four, stating that the film "kind of defy ratings; obviously they’re not high art, and the serious critic in me believes the score below is appropriate for these slight, outrageous confections.

Yet they’re also diverting, raucous fun when seen in the company of like-minded viewers, so that rating can be augmented by half a skull (or more) if you’re able to watch these movies with a group".

[2] Variety gave the film a mixed review, noting that "the comic dialogue lacks zing and most perfs are pitched too high even for this type of nonsense, Takeda tones it down nicely and impressively kicks the butts of sleazy corporate types and seafood.