The Lecumberri Penitentiary was one of the most notorious prisons in 20th-century Mexico, known for the notorious inmates who were held there and the appalling living conditions inside. This documentary records daily life in the prison shortly before its closure.

Claudia and Antonio have been married for 15 years. After so many years of marriage they have lost track of each other. One night, after a strong argument, the unusual alignment of the planets Venus, Earth and Mars causes a magical transformation: Antonio's soul is trapped in the body of Claudia and Claudia's in Antonio's body.