After having a stone thrown at her head, Marla learns as a child that the opposite sex can be very hurtful. Many years later she meets and falls in love with Robert. Little does she suspect that he is the stone thrower from her past.
Germanus, a brave gladiator, witnesses the brutal murder of his brother, committed by another fighter. Since then, he will become his worst enemy, with whom he will fight in several fights, each more bitter. One day, Germanus discovers that his sister, also gladiator, maintains a passionate affair with the man who killed the brother of both, without her knowing anything about the crime