One of Kidd's ten essential supernatural mysteries, as shared at Publishers Weekly:
Falling Angel by William HjortsbergRead about the other entries on the list.
This wicked blend of murder and the occult has Harry Angel, hard-boiled private eye, hired to investigate the case of a missing man, Johnny Favorite. A once promising crooner injured in the Second World War, Favorite has fallen off the face of the earth. Following Favorite’s trail, Angel descends into a nightmarish world of voodoo, sex, and violence where nothing is quite what it seems and he’s in danger of losing more than his life. For it turns out that Favorite kept some unusual company and had an interest in the otherworldly. Against a backdrop of 1950s New York, Hjortsberg fashions a wonderful, twisted, supernatural noir. Complete with a sharp plot, tortured humor, and moments of visceral horror.