危险人物 "Alfred Hitchcock Presents" The Dangerous People (1957)认领

　　Two men wait at a train station. One is an accountant. The other is a lawyer. A siren wails periodically. It seems a maniac has escaped from the local mental hospital. The police haven't caught him yet. So, who knows if the maniac will come charging into the waiting room? In fact, who knows if he isn't already there?