"It's You, That's All" tells the story of a young woman who has locked herself away in the worst kind of solitude, that of the heart, and to whom fate, cruel and capricious, offers one last chance to escape. It is indeed her last chance, as Pauline is about to leave behind this period of her life when anything is still possible. After that, in many ways, it will be too late. Either Pauline suffers and becomes a victim, or her explosive personality pushes her to take action so that the man of her life is finally hers. She therefore decides to devise a plan that, she believes, will allow her to take revenge on Mathieu, the man who abandoned her a few years earlier. But the scheme will get out of hand, and the revenge she had imagined will turn into a whirlwind of misunderstandings and unexpected situations until the final twist, proving once again that the hunter becomes the hunted.