María Begino is a young consultant who has been entrusted with an impossible task. Determined to carry it out in spite of everything, she adopts a false identity to infiltrate a client's business, assisted by her French ex-lover and a Swiss professor of psychology, with whom she forms a very special 'ménage à trois'. Thanks to her dual identity she discovers the truth about the business and the human dramas that take place within, from the CEO to the office temp. At the same time, the anxieties, surprises and shocks of this new life lead her to a worrying awareness of her actual existence: the shallowness of her life, her marriage, and her professional career. An exciting, dramatic adventure that will grip and entertain its readers, leading them to reflect on themselves and better understand their professional environment.