Lera’s parents invite her to spend a holiday weekend with them, where her ex-boyfriend will also be there with a new girlfriend. To avoid looking lonely, Lera decides to lie and say that everything is fine in her personal life. Looking for a way out, she turns to Kirill, a firefighter with whom she once had a passionate night, asking him to play the role of her boyfriend. Now they need to convince the family of their “falling in love” and make her ex jealous.