19 岁的 Liane 勇敢而热情，与母亲和妹妹一起生活在法国南部弗雷瑞斯尘土飞扬的阳光下。 她痴迷于美丽和成为“某人”的需要，将真人秀视为她被爱的机会……当她试镜“奇迹岛”时，命运向她微笑。

　　阿巴贡（路易·德·菲耐斯 Louis de Funès 饰）是个人尽皆知的吝啬鬼，早年丧妻的他带着女儿艾莉丝（Claire Dupray 饰）和儿子克莱昂特（皮埃尔·奥赛达特 Pierre Aussedat 饰）过着平静的生活。靠放高利贷为生的阿巴贡将辛苦赚来的金币埋在了花园里，他将自家花园的地下视为最保险和最安全的所在。
　　阿巴贡一直在追求一个名叫玛丽安娜（Madeleine Barbulée 饰）的年轻姑娘，没想到玛丽安娜却和克莱昂特两情相悦，两人在花园里幽会的时候被阿巴贡逮了个正着，这让阿巴贡十分气恼。祸不单行，阿巴贡埋在地下的金币失窃了，克莱昂特向父亲承诺他将查出盗窃金币的罪魁祸首，但作为报酬，他必须祝福他与玛丽安娜的爱情。

　　Samedi lives in a village in Wallonia. He works from time to time as a gardener and has a close relationship with his mother. Everyday life in the village, which has seen better times, Samedi's quiet and friendly nature and the still largely intact rural setting stand in stark contrast to the heroin addiction Samedi has suffered from for over 20 years, which only his family knows about. His relationship with his mother changes when he makes another attempt to get clean. Paloma Sermon-Daï’s documentary paints a restrained, highly precise picture of a relationship marked by affection and love but which is also difficult to define in relation to Samedi's problem. As the camera observes the long, concentrated conversations he has with both his mother and his therapist, a picture of addiction comes into view which is part of a family structure. This becomes embedded in something larger in turn via the individual images of the village. Petit Samedi creates an image of dependence in which individual, family and social coexistence are intertwined, without falling into the trap of saying what might be able to solve the problem.

It follows Tom and his mother, who live in a mobile home on the edge of the woods. A young man just released from prison interferes in their life by breaking in and upsetting the balance.