Miss Mary Morstan contacts Sherlock Holmes for his help regarding her father, captain Morstan, who disappeared 10 years ago. Since his disappearance she annually receives a valuable pearl by post from an unknown person. The mystery leads Holmes and doctor Watson into an intricate plot regarding a lost treasure belonging to four convicts on the Andaman Islands

When she receives pearls beyond price and a mysterious message from an anonymous source, Miss Mary Morstan goes to the famous consulting detective of 221B Baker St., Mr. Sherlock Holmes for advice in how to answer the message. Together with his staunch comrade, Dr. John Watson, and a mutt named Toby, Holmes tracks down the secret of the Sign of Four.

一位英国妇人玛丽每年在她父亲失踪的日子都收到一个匿名的邮包。十年前她父亲的失踪对她来说是一次不堪回首的经历。今年，她收到的是那位幽灵般的寄件人的一封信，约她在一个深夜见面。 　　在福尔摩斯和华生的帮助下，玛丽与神秘人会面。然而会面并没揭开真相，相反给他们带来更多的疑问。神秘人在留下一个线索就突然死亡。这线索令福尔摩斯他们决意找出这独特的犯罪背后危险而又不可预测的真相。

莫斯科，1902年。著名导演康斯坦丁·斯坦尼斯拉夫斯基（Konstantin Stanislavsky）为了寻找上演新剧的灵感，决定熟悉城市“底层”的生活。他向公认的莫斯科贫民窟问题专家弗拉基米尔·吉利亚洛夫斯基寻求帮助。他们一起去了传说中的土匪Khitrovka，发现自己卷入了对一名神秘的当地居民谋杀案的调查——一名有着黑暗过去的印度锡克教徒。

莫斯科，1902年。著名导演康斯坦丁·斯坦尼斯拉夫斯基（Konstantin Stanislavsky）为了寻找上演新剧的灵感，决定熟悉城市“底层”的生活。他向公认的莫斯科贫民窟问题专家弗拉基米尔·吉利亚洛夫斯基寻求帮助。他们一起去了传说中的土匪Khitrovka，发现自己卷入了对一名神秘的当地居民谋杀案的调查——一名有着黑暗过去的印度锡克教徒。

A young woman turns to Sherlock Holmes for protection when she's menaced by an escaped killer seeking missing treasure. However, when the woman is kidnapped, Holmes and Watson must penetrate the city's criminal underworld to find her.

An innocent young man from China is anxiously memorizing "his hope" in the middle of the noisy crowd in Shibuya.