In a poor neighborhood crisscrossed by a polluted river, Tati, a 14-year-old girl, is forced to grow up alone in a troubled and confusing context. While learning to sail on the river, she dreams of being a boat rower. A job only ruled by men.

Andrea visits her incarcerated son for the first time. Initially eyed with suspicion by other women in line, she gradually gains their trust — and emerges as a powerful advocate for justice reform.