In this chapter we know Mr Utterson, a hepful and shy lawyer and his cousin and best friend, Richard Enfield, that is a different person from Mr Utterson. They walked across the side-street in London and Enfield tell to Utterson a story about a mysterious door in this street. A cruel madman bumped a little girl and after, he left her in the middle of the street but Mr Enfield caught the cruel man and have to give money to the girl's family. The strange and cruel man called Mr Hyde, that go into de mysterious door and back with a cheque from Coutt's Bank. This cheque have a well-known man in London that donated his money to the charity. He's Doctor Jekyll and Mr Utterson know who is him.