The Marinski Affair by John Holt

The Marinski Affair began as a dull mundane case involving a missing husband. Okay, so he was a rich missing husband, but he was nonetheless, still only a missing husband. The case soon developed into one involving robbery, kidnapping, blackmail and murder. But was there really a kidnapping? And exactly who is blackmailing who? Who actually carried out the robbery? Who committed the murders? Who can you trust? Who can you believe? Is anyone actually telling the truth? What have they got to hide? And what connection was there with a jewel theft that occurred four years previously? All is not as it seems. Tom Kendall, private detective, had the task of solving the mystery. He was usually pretty good at solving puzzles, but this one was different, somehow. It wasn’t that he didn’t have any of the pieces. Oh no, he wasn’t short of clues. It was just that none of the pieces seemed to fit together. (Although a Standalone novel, it is also the Second in a Series featuring Tom Kendall private detective)