Paloma's son Diego plays with a dildo, convinced that it is a unicorn horn; Paloma wonders how the dildo managed to get to Diego's birthday aprty.

Paloma receives an anonymous message the night before the school camp with a photo of the dildo along with a text, saying that her husband loves it.

Paloma tries to find out if her husband is truly cheating on her and with whom, and suspects Soledad Navarro.

Paloma discovers that Soledad is not Fede's lover; Soledad helps Paloma find out who he is cheating on her with; They realize that Vicky, a single mother who meets all the requirement, is not Fede's lover either.

Paloma, Soledad and Vicky discover that Majo, Paloma's high school friend, is too complicit with Fede.

After discovering that Fede's lover is their children's teacher, the four friends decide to go on a night out to drink their sorrows.