This is a private eye thriller with a difference- Sam Kelson, the investigator, has suffered a brain injury three years previously which means he cannot lie- he must always tell the truth. When he is taken to hospital after being shot in the arm, he meets nurse, Jose Feliciano who wants to hire him to investigate some nefarious goings on at the clinic. This is a fairly humorous investigative novel which introduces the reader to some unusual characters. It became apparent after a few chapters that it was the third book in a series although that did not detract from my enjoyment. I hadn’t read the earlier books but all was explained so it did not matter that I was coming to the novel fresh. The fact that Kelson cannot lie did not really add a lot to the story which did seem over complicated in places as there were quite a lot of minor characters. Kelson’s two friends were not well fleshed out and seemed rather two dimensional. There were a lot of guns and towards the end a lot shooting although it transpired that really there were only 3 suspects. I did in fact guess the perpetrator quite early on. This was a reasonably enjoyable thriller and I would be tempted to read another book by this author if it became available. Thanks to NetGalley and the publishers for my arc in exchange for an honest review.