A murder is about to occur in the apartment of an old building and Beto and Inés can prevent such a tragic event, although their opportunities to avoid the misfortune are limited.
A dysfunctional family travels to Cuernavaca, to celebrate their grandmother's birthday. One pretends to have a boyfriend she just met. Another has a girlfriend who is in love with one of his brothers. Another can not stand the way the grandmother treats him but he has been afraid of her for so long...until now.