Mélancolie Mau is the wife of an Air France pilot. One evening, while her husband is away, an unknown intruder breaks into their villa and rapes her. She kills him and then has a difficult time disposing of the body. Not long afterwards she is bombarded with questions by Harry Dobbs, a mysterious American who seems to know something about the matter. Mélancolie, refusing to confess to the murder, finds herself embroiled in a merciless struggle which...