While providing security for a mummified madame and saving his favorite watering hole from drying up, zombie detective Dan Shamble goes up against a local senator and his goons who picketed a production of "Shakespeare in the Dark."

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...