The last good time in the Great Lakes region, the so-called Third Coast gouged into the Upper Midwest of America, was in the shipbuilding era of the two world wars. But even in 1941, in Port Nicollet, Wisconsin, a certain taint grew and spread. It was a port city: sketchy men; fresh-faced boys; salesmen with their sample cases; able-bodied seamen. Always passing through. Occasionally, the locals glimpsed opportunity, but, just as quickly, it was...