A surgeon transplants the heart of an ape into his ailing son with horrific results.

The vampire women of Mexico have awakened to take their revenge on the descendant of the man who destroyed them shortly after they had emigrated to Mexico during the 19th century.

After retiring to the beautiful Mexican town of Guanajuato, a 70 year old decides to follow his dreams and enroll at the university where he stumbles upon a new generation and they are bound together by the novel Don Quijote de la Mancha.

Julia, a governess, comes to work for a bourgeois family that lives in a forested property they have recently bought. Julia is to take care of a little girl named Silvia, whose unusual demeanor may find its roots in the family garden.

A group of college students, led by Claudia, decide to investigate a local tower that has figured prominently in disturbing reoccurring dreams Claudia has been having. They are suspended from school for their antics, but Claudia learns from one of the female staff members that the person in the dream is a student who killed herself years before and that the headmistress has seen her ghost.

Ramón y Socorro, a 50-year-old couple, owners of a tavern, embarks on a long trip to Mexico to attend the wedding of their son, Carlos, with Gloria, the daughter of an important Mexican businessman. Upon arriving in Mexico, Ramón discovers that in this country there is a divorce. Fed up with his wife, he decides to divorce without taking into account that he will soon pay the consequences of this act.