In 2006, Mario Acevedo introduced us to Felix Gomez, soldier vampire turned private investigator, in The Nymphos of Rocky Flats: A Novel. Felix solved the mystery of the nymphos using his supernatural powers, and in 2007, he returns in X-Rated Blood Suckers, the sequel.

Still a private investigator, Felix's services have been sought out by porn actress Katz Meow. Katz needs Felix to find the murderer of her friend and fellow porn star, Roxy Bronze, and she's willing to pay a hefty fee if he'll take the case. When he realizes he has personal ties to Roxy, his interest in the case is piqued. When the governing body of vampires, the Araneum, lets him know--in no uncertain terms--that he will take the case because they suspect vampire-human collusion, he hops on a plane for Los Angeles.

When Felix arrives, he discovers that Katz Meow has disappeared. According to her employer, porn producer Cragnow Vissoom, she never showed up for work, which is out of character for Katz. Vissoom is also the leader of the Los Angeles vampire nidus and is the main suspect the Araneum sent Felix to investigate. Felix knows there is more to the story than Vissoom is revealing.

As Felix begins interviewing suspects, it becomes evident that Roxy had plenty of enemies with motives for murder. The suspect list keeps getting longer and the bodies are piling up. Crime lords, politicians, doctors, porn kings, evangelists, chalices--everyone he encounters seems to be linked to one another and have ties to Roxy. It's baffling, even for the most experienced of supernatural detectives.

The story of X-Rated Blood Suckers is possibly more intricate than The Nymphos of Rocky Flats. Acevedo manages to introduce a host of characters without convoluting the plot and distracting the reader. A love interest provides some inner turmoil for Felix as he wrestles back his human emotions because of his damnation into the world of blood suckers.

Possibly the most delightful aspect is the addition of Felix's partner-in-crime, Coyote. Coyote is an elusive ancient vampire with a penchant for rat meat. With his mysterious talents, he darts in and out of Felix's life with privileged information that helps the investigation. Despite his irritation, Felix becomes quite attached to his friend. Coyote could be characterized as the comic relief, but the whole of the novel is hilarious on its own. Together, the two friends face the most dangerous adversary of all: humans.