María Jiménez reviews her life, personal and professional career, reveals some of its issues and her day-to-day life facing lung cancer. María Jiménez has been one of the most popular singers in Spain in the last half century and, at the same time, the protagonist of a tremendous personal story. Multifaceted, rebellious and outspoken, for this documentary the artist surrounds herself with her son and her pets in her house, in Chiclana de La Frontera, to review her life path. Friends, family and confidants of her also provide anecdotes and testimonies about her. María Jiménez openly recounts her biographical milestones, even the most painful ones, such as the loss of her daughter Rocío or the mistreatment of her ex-husband, the actor Pepe Sancho. She also doesn't leave out lung cancer from her. ‘María Jiménez: mi mundo es otro’ offers a much more powerful vision of the singer than the one we had known in recent decades.