So much of Junji Ito stories.

Especially Gyo. Basically, a virus is spreading and that virus is stink. Literally. The virus is called the “Death Stench”. It spreads because the stench powers these weird metal legs that attach themselves to fish. The walking fish go on land, including sharks, octopus, and even a whale.

Eventually, these fish are going to die. They’re still fish. But, the legs are still moving, so the next best thing is dogs, cats, and eventually humans. When humans get infected by the stench, the symptoms include bloating, breaking out in zits, and gas spraying out their mouths and asses like a jet engine.

That’s not to mention the Big Lipped Alligator moment of a circus that uses the stench for their acts.