The slender premise springs from the actions of two listless 11-year-old boys, the cold, manipulative Leo, and his weaker, more impressionable friend, Mike. Contemptuous of the fallible police force (Mike has already filched a police hat from an accident scene), the boys arrange a staged knife fight outside a football stadium with the aid of a bag of stage blood and a real blade.

In the future, two television networks compete for ratings by producing violent game shows. One network produces a modern day version of the Roman gladiators, only on motorcycles instead of chariots, and uses convicted murderers as the participants, The network decides it needs a champion for this sport, so they frame a constant winner from another game for murder, and place him on the show.

Federico is a child-killer running from the law. Wounded, he is taken in by a 12 year old girl named Simona. Their strange love affair is interrupted by Simona's depressed, oversexed mother Vera, who concocts a plan with Federico to kill her wheelchair-bound, reclusive husband. Simona does not take kindly to this new relationship between Federico and Vera.

The spirit of a deceased knight returns every 100 years to clean a house by graphiquely murdering the women who are making the life of his descendants unbearable.

A very poor and handicaped man, lives in a small town in Mexico with his mother. He works announcing things along the town ("The priest lost his cow, if someone sees it …"). He is very interested in the cock fightigs. One day a man gives him a looser cock, thinking to give him something to eat, but instead he takes care of the animal and it becomes a winner cock. He begins to win some money. La Caponera, a very good looking singer, erlier avoided him but now she uses her coquetry to gain some drinks. He thinks she is his talisman so she marries her when he becomes rich, taking her apart from the show-bizz, so she begins to feel very unhappy.

Paul Dean has created a deadly parasite that is now attached to his stomach. He and his female companion, Patricia Welles, must find away to destroy it while also trying to avoid Ricus and his rednecks and an evil government agent named Merchant.