Iro Konstantopoulou was thirteen years old when the Germans invaded Greece. Despite her age, however, she got involved with the resistance. When she was arrested for the first time, her rich father managed to set her free, and she fell in love with a young doctor who took care of her injuries following torture. A little before the withdrawal of the Germans, she participated in the blowing up of a train that was transporting ammunition, and she was arrested again, but this time no one could save her. She was executed at the Chaïdari camp, along with forty-nine other prisoners.

In search of a box supposed to hold a treasure, a young woman goes into the ruins to recover her loot. Followed from afar by a man, the latter traps her and forces her to give him the said box. By observing its contents, he realizes that it contains only 13 euros and decides to do everything to find out where the young woman could have hidden the rest of the money.