Successful traffic police officer Petia Vasiukin (actor Dmitrij Nagiev) still not married and still living with his mother. Petia has a girlfriend – beautiful cashier of petrol station Olia (actor Julia Aleksandrova). Finally, young man decides to propose for his beloved. On the same day, during shift, Petia stops drunk pop singer Alina (performed by famous Russian singer Olga Seriabkina).
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