Detriot was a tough town in a tough time. Southern whites and blacks working side by side, rationing, the black-market, the Mafia, a new kind of jazz for seething summer nights; it was a powder keg. Through this troubled world cuts a killer, savaging ordinary people, the elderly and the defenseless. Lieutenant Zagreb's job is to keep the city from exploding, then to catch a mad killer. And finally, he must save his own soul. He cannot succeed at all three.