Secretary Joyce Willecombe becomes suspicious of two men boarding her train and seeks help from 'Tough Willy' Calhoun, head of the Union Station police. Although initially skeptical, Calhoun learns the men are involved in a kidnapping case after they manage to escape. He teams up with the equally determined Inspector Donnelly, but the ruthless kidnapper continues to stay ahead of the law. Most of the suspense takes place around the bustling Union Station. Cast: - William Holden as Detective Lt. William Calhoun - Nancy Olson as Joyce Willecombe - Barry Fitzgerald as Inspector Donnelly - Lyle Bettger as Joe Beacom - Jan Sterling as Marge Wrighter - Allene Roberts as Lorna Murchison - Herbert Heyes as Henry L. Murchison - Fred Graff as Vince Marley - James Seay as Detective Eddie Shattuck - Parley Baer as Detective Gottschalk - Ralph Sanford as Detective Fay - Richard Karlan as Detective George Stein - Bigelow Sayre as Detective Ross - Charles Dayton as Howard Kettner - Jean Ruth as Pretty Girl - John Crawford as Hackett (uncredited) Runtime: 80 minutes