A man is found dead in the Omonia underground station and the police investigate the crime. The police officer in charge of the investigation meets and becomes romantically involved with the daughter of the murdered man, even though he suspects that she may know something about her father's activities. However, it soon becomes clear that the deceased had close ties to and collaborated with a large ring of antiquities smugglers. A police agent, who pretends to be interested in buying ancient artifacts, leads to the complete dismantling of the ring and the solving of the crime.

Marinos, Nikos, and Leonidas, along with the tentibossa Sofi, form a small gang that engages in car theft and blackmailing married couples. However, they all fall victim to the notorious Sophie, who lures them into illicit love affairs, where her friends secretly photograph them. Fani, the daughter of businessman Renieris, is in love with Nikos and tries in vain to bring him back to the straight and narrow. One day, Nikos kills the gang leader, Leonidas, because the latter had called him a bastard. He is then arrested and brought to trial, to be judged by his own father, who is the prosecutor.