So Raft goes through a series of adventures trying to find that specific copy of GB that was in that hotel room, & finally tracks down the guy who took it from the room. He's a blind WWII vet, who tells of his intended suicide in that hotel room, & what happened to dissuade him. But he does not have the GB anymore, for the woman (forgot to mention her, sorry) whom Raft hired to help him find the GB, had already been there, and took it. She shows up, and tells him that there is no killer's name in it, but instead a verse had been circled, "Vengeance is mine, I will repay, sayeth the Lord" and written in the margin,"Thou shalt not kill." Raft is beside himself, he really wanted to kill the murderer, and after hunting for the GB for weeks, this!
But the ending itself, Raft finally corners the man (Raymond Burr) who hired the killer , and is about to shoot him, when Burr steps on a live wire!
But the Killer (Col Potter of MASH) & had already had an argument, &-- too much to write! sorry. This is a great film!