Ever since the Big Uneasy, Dan Chambeaux worked as a human private investigator in the Unnatural Quarter. Even being murdered doesn't keep a good detective down, and zombie Dan "Shamble" is back from the dead and back on the case! And what strange cases they are. Shamble is faced with mummies suing their museums, living-undead political tensions, defending a mixed race couple (he's a vampire, she's a werewolf) from housing discrimination, a serial scalper targeting werwolves, and a standard lost dog case with a hellhound. And above all, he's got to figure out a very personal question: who killed him? Shamble must team up with his ghost girlfriend Sheyenne, a bleeding-heart human lawyer named Robin Deyer, and his BHF (Best Human Friend) Officer Toby McGoohan to seek justice for the denizens of the Unnatural Quarter. In these four volumes—Death Warmed Over, Unnatural Acts, Working Stiff, and Hair Raising—Dan Shamble puts the P.I. back into R.I.P.