"Petit ami" is a French film that tells the story of a young woman named Marie who is struggling with her relationships. She is torn between her current boyfriend, who is reliable but boring, and a new man who is exciting but unpredictable. As Marie navigates the complexities of love and desire, she must decide what she truly wants in a partner. The film explores themes of passion, loyalty, and self-discovery as Marie learns more about herself through her romantic experiences.