The Galmi purple, the onion from Niger, pervades West African markets with four hundred thousand tons a year. In Galmi, Salamatou's been waiting for her wedding for two years. Her father Yaro, urged both by her future in-laws and the village gossip makes a decision : "The wedding will take place at the harvest !" Yaro is aware that to be up to his commitment this time, he has to produce more and sell at a higher price...