A Study In Scarlet

A Study In Scarlet

The story is divided in 2 parts:

First part:
The story begins where Dr. John Watson runs into an old friend, Stamford. Due to a shoulder injury sustained in the War, Watson was forced to retire and is now looking for a place to live. Stamford reveals that an acquaintance of his, Sherlock Holmes, is looking for someone to split the rent at a flat at 221B, Baker Street.
Stamford takes Watson to the local hospital's lab, where Holmes is doing experiments. Watson reveals that he is willing to split the rooms at 221B and he and Holmes list all of their faults to make sure that they accept living with each other. After seeing the rooms, the two move in.
Watson is amazed by Holmes for the knowledge in several subjects, Holmes also has multiple guests visiting him at different intervals during the day; he reveals to Watson that he is a consulting detective, and that his guests are clients. One of these guests turns out to be a retired Marine sergeant delivering a message from Scotland Yard about a recent murder. Holmes invites Watson to accompany him as he investigates the crime scene.
Holmes observes the sidewalk and garden leading up to the house.When they enter to the house, Holmes and Watson meet Inspectors Gregson and Lestrade. The four observe the crime scene and the corpse, who is identified as Enoch Drebber. There is blood found in the room but there is no wound on the body. They also learn from documents found on his person that he was in London with a friend, Joseph Stangerson. Above his body, written in blood, is the word "RACHE", which Holmes remarks is German for revenge. He goes on to deduce that the victim died from poison. Holmes listens a story about a drunk man loitering by the scene of the crime and informs him that the “drunk” was really the murderer revisiting the scene to collect a ring that Holmes found on the body.
Holmes puts a notice in the paper about the ring, expecting that the murderer, having already returned to the scene of the crime...