Lingerie and shapewear played a very big part in fashion in the first half of the 20th century. Corsets and bustles shaped women in the early 1900s whilst breasts were strapped down in the 1920s.
What Katie Did focuses on the 1940s and 1950s when woman's natural figures were celebrated and breasts and hips were in fashion. Hooray! However, all was not as it seemed as underneath the dresses serious help was at hand.