Doña Chonita is very strict with her four sons, and with her philandering husband, Lencho. Her son with an upper-class woman, whose father wants to take over the bus concession owned by Doña Chonita and her family. After a family member loses 50,000 pesos in a card game, the bus concession is at risk until Doña Chonita challenges him to a game of poker.
