Obviously modeled on Jules Dassin's superior THE NAKED CITY (1948) co-starring Barry Fitzgerald, meticulous police procedural, filmed on actual locations this film can certainly stand on its own two feet, being a tight and neatly-handled little thriller with plenty of action and suspense. Especially effective is a game of cat-and-mouse on a train between criminal and cop, which must have influenced THE FRENCH CONNECTION (1971)!
While it doesn't quite have the scope of the earlier classic, the film nonetheless makes the most of its situations (revolving around a race-against-the-clock to save a kidnapped blind girl) and settings (the majority of the action taking place, naturally, inside the titular location with the tunnels underneath the station itself providing the backdrop for the climax, and which may well have been inspired by ending of THE THIRD MAN [1949]).
Fitzgerald is once again excellent though, here, he rather plays second-fiddle to the nominal stars this being a Paramount film, it couldn't but be contract players (William Holden and Nancy Olson in the second of their four teamings). Lyle Bettger is appropriately menacing as the sly chief kidnapper, while Jan Sterling appears as his soft-hearted girlfriend (who suffers the consequences for demonstrating compassion towards her charge).