Book #15 of the Papa Pontivy series.
George Allin was a very, very smart man. He was also quite bitter about the way he had been treated by life and society and decided to declare war on that society by going into a life of crime. He was very good at it, enough so that he was able to gain respect as a philanthropist, even as he continued his life of crime. The authorities decided they needed help bringing to justice so they appealed to Papa Pontivy to turn his spy-catching into criminal-catching. Pontivy, aided by Bernard Newman, chooses to use the popular This Is Your Life television program to catch him.
It is Superintendent Marshall who is behind asking Pontivy's help and he plays a major part in the assist.