 A convict being escorted in for retrial escapes at Grand Central and threatens his old girlfriend on the phone. She flees for her new beau s private railcar at the same station. When she is then found murdered the cops round up a motley group of suspects including the escapee, several guys feeling sore at the way the gold-digging broad had treated them, some jealous dames, and a private eye already on the case. Inspector Gunther soon has a problem - enough evidence to fry all of them.