Maryana Yampolskaya, director of a successful legal agency, takes her sister's daughter, Dina, for an internship. Lively and responsible, she immediately becomes the center of attention of employees, including Gena Bashkaev, Dina's main competitor, and Viktor Doroshin, co-owner of the agency. The latter especially irritates Maryana; in their youth they had an affair and her feelings for Doroshin have not cooled down yet. He, in turn, keeps Maryana on a short leash as a lawyer who is useful to him in business, although he himself has been happily married for a long time. The rivalry between Dina and Maryana grows in proportion to her successes; the young talent is hot on the heels not only professionally. Unexpectedly revealed family secrets force Maryana to plunge into her past and once again relive the dramatic events of her youth. After going through trials, Maryana will meet a reliable, free man who will make her feel like a real woman.