Honky Tonk Samurai (Hap & Leonard) by Joe R. Lansdale

There will probably be a lot of extra readers for this one because of the Sundance TV show based on this series. Well, let me tell you that it's not written for those new readers. It does give the loyal fans all the Dr. Peppers, vanilla cookies, laughs and outrageous characters they can want.
In this ninth novel in the series Hap (our narrator) and Leonard (a gay black tough guy) become official PI's. The first case involves the search for the missing daugther of an old lady. What they stumble upon is a used car dealership that is a cover for an escort service.
Their investigations lead them to do battle with the toughtest, craziest bunch of villains they ever faced. Luckily, they have some of the toughest, craziest bunch of partners to help them out.
This book is very violent, sometimes very funny, often in a crude way and yet still very endearing at times. This is one of my favorite series of all time and this one shows again why.
Beware, the ending of this one will very much surpise and sadden you.