A day full of emotions awaits psychiatrist Henri Lacombe and his wife Anne Beaulieu, a psychologist by profession. Anne still insists with Henri to go out for supper. In the evening, Anne never shows up at the restaurant. Unusual behavior on his part. Henri looks for her, but his wife cannot be found. Powerless, he alerts the authorities. His nightmare becomes real when his file is referred to Simone Vallier, a major crimes investigator: his wife is indeed missing.