Carmelita and Uncle Matt find themselves in a haunted house, but the "ghosts" are actually enemy agents who are trying to frighten away visitors in order to develop a nitroglycerin bomb.

Director Rowland V. Lee's wacky 1942 comedy, about an absent-minded scientist working on a secret formula at an explosives plant, stars Edmond O'Brien, Victor McLaglen, Dorothy Lovett, June Havoc, Eddie Foy Jr., Marion Martin and Mary Gordon.

Leon Errol tries to thwart his son's romance.