A confrontation erupts among residents of a building over a shared air conditioning system. Anna and others accuse a man named Marco, who installed the AC, of owing them money due to high electricity bills, with one woman implying his mother was the real beneficiary. Marco's supporter defends him, but the group presents an ultimatum: he must either pay for everyone's increased costs or completely remove the equipment from the common area. Marco is backed into a corner as the residents declare their unified demand, leaving him to face the immediate pressure of their ultimatum.