During the summer, thirteen-year-old Sofia moves to the country house, where her cousin Cristina is waiting for her to spend the vacations. During these days of games and discoveries, the two will be immersed in a love triangle with a man almost twenty years older. Its outcome will mark the passage from puberty to adolescence for both of them.

Four members of the Durán family endure the triumphs and tragedies of being a woman in modern Mexico.