Девять совсем незнакомых людей by Liane Moriarty

Nine city-dwelling strangers converge at a luxurious health resort run by an enigmatic woman promising radical transformation; over ten days, therapies, secrets and personal crises force them to confront their pasts and each other. As the retreat's methods grow increasingly extreme, alliances form and tensions explode, revealing hidden motives, vulnerabilities and the absurdities of self-improvement culture. The novel blends psychological suspense, dark humor and social satire to examine pain, connection and the search for redemption.