Sheila Dembro married an older man when she was still a teenager, and now she's unhappy in her marriage and unsatisfied with her life. She wants other men and other things, and her chasing after those leads her into madness.
Sheila was still a teenager when she met and became the wife of an older man named John Dembro. John had a big dream of becoming a rancher and Sheila followed him as he pursued that dream. As their life continued, Sheila stopped loving her husband and her eye started to wander.