Bugs Bunny is too sound a sleeper to notice that a sudden rainstorm has flooded his rabbit hole and sent his mattress, with him on it, floating downstream toward a castle with helpful neon signs that say "Evil Scientist" and "Boo." Said Evil Scientist needs a brain for his mechanical monster, and when he sees Bugs Bunny floating by, decides a rabbit's brain is as good as any other. Bugs Bunny awakens to the horror of reposing mummies, an Evil Scientist with a huge, green head and an enormous robot waiting for its brain. Bugs tries to escape, but the scientist sends Rudolph after him. Rudolph is an unlikely beast covered with orange fur; it wears sneakers, but why not? Who says monsters don't have sensitive feet? Bugs poses as a chatty hairdresser, uses vanishing fluid on himself, and pours reducing fluid on the beast to thwart him. But Bugs's only weapon against the Evil Scientist will be a broken bottle of ether. Will it be enough?
"Water, Water Every Hare" is an amusing short with excellent artwork. (Love that mechanical monster!) But it's not as funny or as well plotted as the earlier, and very similar, "Hair-Raising Hare," which also featured a castle, an evil scientist, the same furry orange beast (with a different name), a scene where Bugs narrowly escapes a trap door and a scene where Bugs poses as a chatty beautician.
Silent movie fans will recognize the ether gag, a standard for that era, jazzed up with sound effects and cartoon animation. Bugs Bunny fans will notice that the beast from "Hair-Raising" has changed its name from Gossamer to Rudolph. Finally, horror movie fans will think the scientist is a prescient creation. Supposedly he's meant to evoke Boris Karloff. But he sounds much more like Vincent Price, who had not quite become the horror icon that he is now. How did Chuck Jones and company know? That's even spookier than this spooky-funny film.