Noburo Iguchi's Zombie Ass: Toilet of the Dead is not, strictly speaking, about toilets. There is an outhouse in the film, and it has dead people in it, but it's really incidental to the plot, which almost never gets in the way of the story.
Arisa Nakamura plays Megumi, a nice Japanese schoolgirl who knows some kung fu and is heartbroken over the suicide of her sister. She's with two girls and a dorky guy, plus a skeezy weirdo, and they are going camping, in the best, time-honored, "Stupid People in the Woods" manner.
One of the gals wants to eat a parasitic worm so she can be skinny and become a model. They find a worm in a trout which Megumi catches with a net.
Now here's where we have some problems. First of all, are there trout in Japan? Second — do they have big worms in them? Third, is it bcause they are wormy that they hang in space, waiting for a kung fu net-twirling Japanese kid to show up and catch them? Fourth — ever hear of cat and release?
I realized at this point in the film that the ol' suspension of disbelief was going to come in handy.
Anyhoo, as you might guess, there are zombies around, and in trying to get away from them the gang find a little village.
Ko (played by Yuki, or maybe it's the other way around), is feeling a little under the weather on account of the worm she ate, and she starts farting.
She poots her way to the outhouse, where, as is often the case in these isolated locations with a mad scientist in the barn and tapeworms in the trout, there are also zombies in — or under — the outhouse.
Iguchi keeps upping the ante, to the point where the film is utterly disgusting in every possible way.
But never tasteless.
We're talking the usual exploding heads and popping eyes. Visible farts. Visible farts with demons in them. Zombies walking on all fours, backwards, with demon parasites sticking out of their butts. White panties. Flying parasite queen, in blue sun dress and flowered panties. Two breasts. Eight gallons blood; four gallons assorted glop. One mad scientist, one toothless goober, one skeezy drug addict, one flying trout.
An outstanding piece of work, and short, too. Iguchi is an instant Immortal. Four coils, no doubt about it.