There was a lawyer named Utterson. He had a friend named Enfield.
A strange man named Hyde, murdered Danvers Carew. When the police and the lawyer went to arrest him, he was no where there.
The lawyer went to Dr. Jekyll who was a close friend of Hyde. But he hid himself in a room and locked the door. The other people in the house were very concerned because he rarely came out and was acting strange.
The lawyer and police became suspicious, so they broke open the door and found Hyde, but he escaped from there too.
The next day they searched for different clues about the mystery. The lawyer went back to Jekyll's house. A stranger came to the lawyer, drank a potion and turned into Jekyll. The lawyer was completely confused and shocked about what had happened.
The lawyer got to know that Jekyll created a potion which would change a person's appearance. When Jekyll drank it, he change into to Hyde. But something went wrong and Jekyll continuously changed into Hyde. So to hide this from everyone he hid himself inside a room. That's how he was caught in the end.