Directed by Charles Vidor | Starring: Kent Taylor, Evelyn Venable, Mary Morris, Anne Revere

A domineering money-bags' suppressed incestuous urges go into overdrive when her half-brother brings a new bride home to the family’s gloomy Fifth Avenue mansion. The title refers to a secret soundproofed chamber that the villainess uses to entrap her enemies.

IMDb Double Door movie posters