People think they know what they're capable of. They think they could never kill their parents or harm a child under any circumstances. That they would never go so far as to rape someone. That they would never drive their children off a bridge into the void. They think they're incapable of committing a crime until they do. A supermarket in France. Lisa hopes to catch a glimpse of her five-year-old twins, who are shopping with their father. In a custody battle, she lost visitation rights with her sons and is no longer allowed near the family home. She sees her children only once a month under supervision. The pain of no longer experiencing her sons' daily lives is as overwhelming as her emotions during these visits. Her court-appointed lawyer despairs of Lisa, who herself becomes the greatest danger while observing the family's life. Finally, with a rental car, Lisa breaks the legally mandated distance from the family home; the familiar surroundings bring even more memories to the surface. The bridge under which she and her husband argued, but also passionately loved; the country house with the residence of her in-laws, who had rejected her from the start. But the observation, which increasingly became an obsession, eventually wasn't enough anymore...