Jacques Dufaux, whose hair has turned gray with age, is an electrician on Aix Island. When he's not working, he stays at home playing with all sorts of electronic devices. The island inhabitants have always found him eccentric, strange, but Jacques is haunted. In his mind, a mysterious entity that he calls "Her" spies on him, watches him constantly, terrorizes him. I am his wife Yvonne, an old lady, and I try to help him, but he rebuffs me every time. Sometimes I wonder if I'm "Her," the thing that torments my husband so much. If that’s so, how can he be liberated from his madness?