Not surprisingly, the Spanish Estacion Central takes place in large part in a busy railroad terminal. Here is where a woman is murdered, and here is where Barcelonan photographer Feodor Atkine happens to snap a picture of the dirty deed. It would be a simple matter for the photographer to turn his evidence over to the police. Unfortunately, he has retained too many ties to too many underworld figures, and thus can't go to the cops without being suspected of the murder himself. There are several neat Hitchcock-like touches to be found in Estacion Central, most of them in the pulse-racing closing scenes.
~ Hal Erickson, All Movie Guide