In the tenth volume of the Complete Works, P. Boileau and T. Narcejac turn in the novel “Chuss” to a topic unusual for the detective genre - skiing. Like many other masters of Western literature, the authors could not ignore the traditional theme of good and evil , embodied by R.L. Stevenson in the characters of "The Strange Case of Dr. Jekyll and Mr. Hyde." The mysterious duality of human nature takes on an unexpected resonance in their novels “Mr. Hyde”, “Contract” and stories of different years. Using the seemingly insipid material of the relationship between two old women in the novel “In a Close Circle”, the authors managed to build a psychologically accurate image of an aging celebrity, which at the end of her life remains only bitter memories of previous triumphs and the desire to prove her uniqueness at all costs one more time, the last time.