What is the plot summary in Misery by Anton Checkhov?

"Misery" by Anton Chekhov tells the story of Iona Potapov, a poor sledge driver mourning the recent death of his son. As he tries to share his grief with his passengers, they dismiss him, highlighting their indifference to his suffering. The story explores themes of isolation and the human need for connection, culminating in Iona's realization that he is utterly alone in his sorrow. Ultimately, he finds solace in expressing his pain to his horse, which becomes a poignant symbol of his loneliness.