From Goodreads
The Lady with the Dog is a short story by Anton Chekhov first published in 1899. It tells the story of an adulterous affair between a Russian banker and a young lady he meets while vacationing in Yalta. The story comprises four parts: (I) describes the initial meeting in Yalta, (II) the consummation of the affair and the remaining time in Yalta, (III) Gurov’s return to Moscow and his visit to Anna’s town, and (IV) Anna’s visits to Moscow. Vladimir Nabokov declared that it was one of the greatest short stories ever written.