William Castle returns to the rich well of legendary actresses in peril with this unjustly ignored entry. It doesn't live up to it's marvelously dreamy opening, with Paul Frees narrating in his best Orson Welles impresson. But it's a solid thriller in the Gaslight tradition with Stanwyck carrying the whole thing to safety. Pleasant dreaming.
(Of note is this Spanish poster, which Del Toro mentioned having an influence on Pan's Labyrinth after being fascinated with it as a child.)