In the intensely-told, psychological drama, Letty Mason (Lillian Gish) - a "proper," fragile, sheltered, naive and young Southern belle suffering from impoverishment, raveled by train from Virginia to the frontier West, presumably in the 1880s.The inner vault was also protected by state of the art sound and temperature sensors, an overhead air conditioning vent 30 feet above the floor with a laser net, and a pressure-sensitive floor.[Note: The film was inspired by the real-life gangster Arthur "Doc" and his mother Ma Barker, from a suggestion by star Cagney himself to the writers.]On her floor, she was greeted by a female neighbor who was proceeding to take her dog for a walk.Carol""s bedroom was the first room on the left upon entry.From the rear window looking into the back courtyard, she had a distant view of another female-only locale - a convent nunnery play-yard area, where nuns threw a ball to each other in a circle, but there was an annoying, often-clanging bell.