The life of Saki, a young Japanese woman newly arrived in France, takes a dramatic turn one evening when she hears domestic violence in her apartment building. In trying to help her Moroccan neighbor Zarahwho, like her, does not speak French. Saki is far from imagining the adversity that awaits them both.

Tom, in his thirties, lives in France with his Japanese wife, Sakura, and their four-year-old son, Genki. The little family leads an ordinary and fulfilled existence. However, their balance explodes during a trip to Japan where Sakura dies in a tragic accident. From then on, the Japanese family with traditional customs considered that their duty was to raise Genki in Japan. An inconceivable decision for Tom, determined to fight to remain the mother of her child.