In a peripheral zone of Mexico City, the collection of money from merchants and residents of the area is an everyday occurrence. On a sunny Sunday, in a housing unit located in one of these areas, a merchant has not paid his fee and the hired killers have come to give him an ultimatum.

Family Sunday

A man and a woman, who have just met, transport a corpse on request to the north of Mexico. When the police discover them at a routine check, they are forced to flee. Pressured to team up, they will abandon their secrecy and mistrust while trying to assert his only possession: a dead man whom they only know.