A young woman just released from a mental institution returns home to her mansion and faces a new set of horrors.

Although the title (which translates as "Murders in Chicago") promises a gangster story, this is more of a murder mystery that kicks off with the seemingly accidental death of a construction worker, followed shortly after by that of a noted publisher (an uneasy-looking Eduardo Fajardo). What follows is a very confusing story in which the police, a police coroner (José Campos) and a vagrant (Fernando Sánchez Polack) who witnessed Fajardo's death embark on separate inquests on what actually happened. Meanwhile, June (María Luisa Rubio), who works as a secretary for the publishing company, is under pressure by a blackmailer (Antonio Jiménez Escribano) who has pictures of her in the sack with the deceased publisher.

A child is witness to an assault on a monk by the gang of Lorenzo the Fifth. The monk escapes and takes refuge in the estate of Doña Carlota, a countess who lives with her son Juan and daughter Beatriz. Basilisa, the maid, conjures the devil to free her son from an irreversible illness, but to do so the evil must be transmitted to an innocent soul, and for that she chooses Beatriz. The child begins to be the victim of a possession, for which everyone blames the monk.

Minister with four virgin daughters inherits a bordello. The land contains a silver mine and the corrupt sheriff tries to force them to leave.

Gina is a single woman with a good job. From very attractive features, its beauty shines it should not because of their excess weight. Her boyfriend decides to leave her and from that moment her life is shrouded in sadness and monotony. Everything changes when he bursts into her life a very handsome young man called Luis. But it's intentions are not clear, Gina must discover the reasons that really move her wooer ...

Dale and Helen Brais are a marriage of farmers who subsist on what little they manage to get from their land. One stormy night, a stranger enters their home to rob and Dale kills him incidentally. The intruder is Red Burket, head of a band that is dedicated to sabotage the new railway line and there is a bounty on his head of $20,000. What seems the solution to the problems of the couple becomes the beginning of a nightmare.

The purchase and sale of ranches that occupy land where the railway has to pass causes various problems. Also, a gold mine in these lands creates several disputes.

A 19th-century expedition to the Earth's core reveals primordial wonders, prehistoric monsters and a subterranean civilization that may convey the greatest discovery of all.

Young Jim Hawkins finds himself serving with pirate captain Long John Silver in search of a buccaneer's treasure, in this short adaptation of Robert Louis Stevenson's classic tale.