At just 40 years old, Alexis sees her well-ordered life suddenly tip over. She has just lost her husband Dorian in a tragic traffic accident... And also learn that he had been living a double life for many years. At her husband's funeral, she will meet Cassie, his mistress. Between a feeling of hatred and guilt, Alexis is going to face the unspoken fantasies of her late husband, with Cassie by her side. The narrative of Cassie's sexual experiences, where her totally unbridled practices with several men were only intended to satisfy Dorian's voyeuristic deviations, is going to plunge Alexis into confusion. Was she too wise to please him? This strange friendship that the two women will develop will push Alexis to ask herself questions that only lust will answer. Whether it is by braving the morality with Tony, Dorian's best friend, by letting herself go to perversions that she would never have imagined, or by taking part with Cassie in mysterious orgies organized in the greatest secrecy by fans of boundless enjoyment, she will draw a line on the past and understand that at 40 years old, life can still offer many exciting adventures.