Natalie Monet was tired of the monotonous life and work in a London business center. Her twin sister Valentina, a princess from a royal family, dreams of a normal life away from the royal palace. The girls do not know about each other's existence, but one day chance brings them together in London. Not a pin to choose between them. But their lives are so different. And everyone wants to change something. Isn't this a reason to switch roles? But in a month and a half, Princess Valentina will marry the Prince of Tisseli.