A fishmonger at the market is kidnapped along with her young son in her own home, in a doorway in downtown Lima, by a robber fleeing the police. She discovers that her kidnapper has a large wad of cash, which he appears to have just stolen. She gradually convinces him to hide upstairs, hoping he'll step on a precarious step she knows is about to break, causing him to fall and die. This happens (he dies), and she takes advantage of the situation, seizing the money and leaving the house, feigning victimhood.