신문을 보며 흥미로운 사건을 찾언 홈즈에게 어느 날 한 남자가 나타나 노어우드라는 곳에서 일어난 이상한 사건에 관해 전해준다. 이로 인해 지루했던 홈즈의 삶이 갑자기 흥미로워 진다.
'For me, Watson, life is not so interesting, 'says Holmes. 'I loved to read the newspaper, hoping to find some news of an interesting crime for me to investigate or a dangerous criminal for me to catch. Where are all those clever criminals these days?'
Then, suddenly, a wild, excited young man runs up the staris to Holmes'
room. He has a story to tell about a strange crime that took place in Norwood. But who is the criminal? And is he dangerous? Life, for Holmes, suddenly starts to get interesting.