Lera and Herman are preparing for the wedding. The groom is going to present his bride with a car. Unexpectedly, the salesman of the salon turns out to be Lera's ex-boyfriend Max, a reckless stuntman who works part-time at the car dealership. Max insists on a test drive and arranges a crazy afterburner, which ends with extreme braking. As a result of the impact, Lera forgets the last year of her life, and with it - Herman... Now she believes that her boyfriend is Max. According to the doctor, there is hope that the reconstruction of vivid events from life with the ex will allow to return Lera's memory. Herman has to ask Max for help - to play a relationship with Lera. But the fiancé will not leave the situation uncontrolled - Max must introduce Herman to Lera as his childhood friend, and the three of them will live under one roof.