This document provides a summary of the short story "The Strange Case of Dr. Jekyll and Mr. Hyde" by Robert Louis Stevenson. It describes an encounter between Mr. Utterson, a lawyer, and his friend Mr. Enfield on a Sunday walk. Mr. Enfield tells Mr. Utterson a strange story about witnessing a man trample over a young girl with no remorse, and then using a cheque from a well-known person to pay off the girl's family to keep the incident quiet. This piques Mr. Utterson's interest in the unsettling affair.