Preparing for the wedding of his sister, Betty (Ava Gardner), to engineer Jack (Rick Vallin), Glimpy (Huntz Hall) receives help from his gang -- especially leader Mugs (Leo Gorcey), who helps them lie their way into getting a tuxedo and flowers. Prior to the wedding, Jack learns the neighboring house to the one he's purchased is haunted and reluctantly decides to sell. Unaware, the boys hope to surprise the couple by decorating the home -- only to discover very strange happenings next door.