Lonely teacher Lidiya Mikhailovna and her former student Zhenya are getting ready to celebrate the New Year. With no suitable men available, they decide to celebrate the holiday together. The women dream of making stuffed carp, but neither has the courage to slaughter the live fish swimming peacefully in the bathtub. Suddenly the doorbell rings, and Lidiya Mikhailovna recognizes the uninvited guest as her first love, Borya, whom she hadn't seen for 30 years.
But Borya, the scoundrel that he is, doesn't recognize Lidiya Mikhailovna and mistakes the teacher for her mother! Insulted, Lidiya Mikhailovna tries to throw the guest out, but Zhenya decides to rekindle their old love and finds an excuse for Borya to stay: he must kill a carp...
