Union Station is a 1950 crime drama film noir directed by Rudolph Maté and starring William Holden, Nancy Olson and Barry Fitzgerald.

When Mr. Murchison is brought in, he admits Lorna has been kidnapped and held for ransom, but does not want the police to get involved as they might endanger his daughter's life.

Beacom drives away (though Joyce memorizes the license plate number), but the police arrest Marley.

When the policemen pretend to prepare to throw Marley in front of an arriving train, he breaks and tells them where Lorna is being held.

Beacom, dressed as an employee, forces a parcel clerk at gunpoint to accept the suitcase with the ransom money and switch it with another one that looks just like it.

Beacom flees to the municipal tunnel underneath the station, where he left Lorna, with Bill in hot pursuit.

Also, it looks like it was filmed on Chicago's South Side El from 1892 to Indiana station, where the train is uncoupled to go on the Stockyards Branch, which ran until 1957.

Maté capitalizes on the story's setting by using innocent passengers and the station's dramatic spaces to heighten the feverish atmosphere.

However, a definite noir outlook is belied by the fact that the police play as rough as the bad guys, blurring the lines of good and evil.