Leonard Maltin once observed that Storm Over Lisbon is what Casablanca would have looked like had it been produced by Republic instead of Warner Bros. This wartime meller reunites the cast and director of the successful Republic melodrama Lady and the Monster, with less than successful results. Skating star Vera Hruba Ralston plays Maritza, a woman of mystery operating in neutral Lisbon. Maritza is somehow connected with sinister café owner Deresco (Erich Von Stroheim), who seems to have a more than a cozy relationship with the Nazis. Deresco tries to prevent American journalist John Craig (Richard Arlen) from leaving Lisbon with a cache of top-secret microfilm (what, no Letters of Transit?) With the whole world crumbling, Vera Ralston manages to work in an ice-ballet number. Few have ever had the urge to shout "Play it again" after watching Storm Over Lisbon.
by Hal Erickson synopsis