During the night, Paulina comes into the living room. She retrieves the gun again, as well as what appear to be “stockings.” She stands by Roberto’s bedroom, listening for a few moments.
Paulina’s behavior is quite mystifying for the audience at this point. They know something is up with her but as yet don’t know what it is.
Paulina enters Roberto’s bedroom, and there is a “confusing muffled sound, followed by a sort of cry.” She drags Roberto into the living room and ties him to a chair.
Paulina retrieves Roberto’s car keys from the spare room. Before leaving the house, she takes off her underwear and stuffs it into Roberto’s mouth. She goes outside and drives his car away. As the headlights momentarily fill the living room, Roberto is shown to be “totally unconscious.”
Paulina’s use of her underwear as a gag is partly because it’s the closest thing she has to hand. But there is a deeper meaning: by gagging Roberto with her underwear, she reframes an object related to sexual desire as a way of exerting her own newfound control.