When one of MacFarland's friends asks him to prove that a man accused of murder is innocent, MacFarland reluctantly agrees. He tells her that he will go where the facts take him, but if that means that the man is guilty, so be it.

But then MacFarland finds he is smack in the middle of a notorious hate crime. The victim is a transgender woman who seems to have a lot of enemies. MacFarland suddenly finds himself in the middle of a crime where everyone has a reason to think he's helping to free a guilty man.

The Truculent Trannie is the twentieth book in the Hot Dog Detective series. Each book can be read independently, but if you want to read them in order, just follow the alphabet.