There's something fishy going on in the Unnatural Quarter. Bodies are floating face-down, the plumbing is backing up, and something smells rotten, even to a zombie detective like Dan Shamble. Diving into the slimy underbelly of a diabolical plot, Dan comes face-to-tentacles with an amphibious villain named Ah'Chulhu. With his snap-happy gang of gator-guys Ah'Chulhu wreaks havoc beneath the streets. Dan Shamble is running out of time before the whole stinking city goes down the drain.

There's something fishy going on in the Unnatural Quarter. Bodies are floating face-down, the plumbing is backing up, and something smells rotten, even to a zombie detective like Dan Shamble. Diving into the slimy underbelly of a diabolical plot, Dan comes face-to-tentacles with an amphibious villain named Ah'Chulhu. With his snap-happy gang of gator-guys Ah'Chulhu wreaks havoc beneath the streets. Dan Shamble is running out of time before the whole stinking city goes down the drain.