Fernando Lascurain is a wealthy businessman and recent widower, attempting to raise his seven unruly children. He seeks the assistance of a new nanny. He hires and falls in love with Ana Leal, a struggling exotic dancer who tries to hide her double life. Although Ana lacks experience and a refined education, she quickly bonds with the Lascurain children. Ana dreams of being a mother, but when her home is destroyed following an accident, she must borrow money from her ruthless boss at "Chicago", the night club where she is secretly employed. When Fernando simultaneously falls for Ana and Isabela, an economist and sophisticated woman who is trained by her mother to marry a millionaire, he must choose between both women.

Violeta lives with her uncle because her mother died soon after she was born and she never knew her father, she stays with her grandmother from time to time as well. Violeta has a boyfriend named Ángel who gives her a pet dog. While at her grandmother's house, Violeta discovers a time machine that her grandfather built, so she and her friends travel to different time periods. They visit several important events in Mexican history, learning these stories firsthand.

Qué Pobres Tan Ricos is the story of the Ruizpalacios family, millionaires who suddenly lose their fortune, and the Menchaca family. The Ruizpalacios must leave their home, and they find that the only place where they can live is with the Menchacas in the Menchaca's modest home.