Private investigator, Nat Pendleton, had been a good friend and mentor to Rhett and Toni Sanders when they'd launched their careers in private investigation. On a Friday evening in his Houston office, Nat was executed by Joseph, "Mad Dog," Sullivan, a professional hit man; with his trademark two bullets to the heart. Rhett and Toni believe they can determine who was responsible for the murder by solving the cases on which Nat had been working, including one case they'd referred to him. There were three cases for them to investigate in all, including one involving a wife who had disappeared with $2 million dollars of her irate husband's money, one involving wealthy and loving grandmother who wanted to know all she could about her granddaughter's fiancée , and one in which a young naive husband suspected his wife of having an affair. Rhett and Toni's investigations takes them to Santa Fe, New Mexico, San Angelo, Texas, Memphis, Tennessee, and their home town, Houston. As usual, there are twists and turns along the way, and all the while, Rhett and Toni understand that at some point they will have to come face to face with a professional killer.