It was not foreseen in the script that Karin Viard watch TV naked. "I suggested it to Lucie, who was obviously delighted because she didn't dare ask me. I wanted to show the abandonment. And I couldn't see myself doing it any other way than through this "uncomfortable" nudity. Even in the cinema, you have to manage to create this fourth wall, which we talk about in the theater. My character can pick his toenails naked, I don't care. I put aside my modesty as an actress, otherwise I wouldn't be right for the role," Viard says.
The novel's author Leïla Slimani originally chose Maïwenn to direct. When she pulled out, runner-up Lucie Borleteau was called back.