The main character is Mańka (played by Agnieszka Więdłocha), the head of a company in a big city whose life suddenly turns upside down. Her business falls victim to unfair competition, her relationship with Norbert (played by Mikołaj Roznerski) hits a crisis, and one day, at her doorstep, she finds Lilka (played by Julia Wieniawa), her younger sister embodying chaos, so alien to Mańka's perfectionism. Into her life - thanks to a dog and coincidence - steps Piotr (played by Bartosz Gelner), whom, despite themselves and despite a series of misunderstandings, Mańka seems to be drawn to. As a successful and dynamic woman, Mańka is determined not to give up, focusing on fighting for her company's survival and exposing fraudsters! But will she lose sight of sisterly friendship and the chance for something new in the process?