Six on a Needle — Michael Zimmer

 Two-Bit Street, 1946Where sin is cheap.And death is cheaper.  Private investigator Lafayette Dole isn't expecting company when a terrified, middle-aged accountant named Simon Tully—a family man with more information on the mob than is good for anyone's health—bursts through the door to his Two-Bit Street office. With a pair of killers just minutes behind him, Tully begs Lafe to help him escape. He needs to reach the FBI offices in Salt Lake City, thirty-five miles to the south. But first, he needs to survive the next few minutes. Lafe leads Tully through a rooftop flight, a reckless car chase, and a desperate ride aboard a freight train, before the two finally slip free of pursuit. But that's only the beginning for Lafe. The mob has too many men looking for Tully, and they want Lafe, too—something about tying up loose ends. And suddenly, thirty-five miles seems like a trip to the moon.