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During acquaintance to the father Thani Andrei finds out that that inveterate billiard-player. During week-end it is decided to hold a friendly meeting. Tanya warns Andrey that her father plays very badly, but hates to lose. Not to quarrel with future father-in-law, Andrey has to give in in game. However all this isn't known by Ivan, and during game of the relation of Andrey and Thani are on the verge of a complete separation.