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A teenager girl learns some vital lessons about growing up as her family struggles with a variety of crises in this drama from French filmmaker Katell Quillevere. Anna (Clara Augarde) is fourteen years old and attends a Catholic school for girls. With school on Easter break, Anna's mother Jeanne (Lio) takes her to visit her grandfather Jean (Michel Galabru), whose health is failing and may not have long to live. Anne is startled when she learns that Jeanne and her father Paul (Thierry Neuvic) have split up, particularly given Jeanne's devotion to the Catholic Church. As Jeanne struggles with the collapse of her marriage, she seeks comfort in the counsel of Father Francois (Stefano Cassetti), but Anna suspects he may be offering more than spiritual advice. Meanwhile, Anna strikes up a friendship with Pierre (Youen Leboulanger-Gourvil), a boy her age who lives nearby, and she's torn between her blossoming desires and the strict teachings of the church. Named for a song by Serge Gainsbourg, Un Poison Violent (aka Love Like Poison) was an official selection at the 2010 Cannes Film Festival.