Recently, the capital of Great Britain has become the site of a series of mysterious robberies that were committed by unknown criminals. Malefactors do not exchange for petty thefts, preferring to steal exceptionally large gems. The employees of Scotland Yard, despite their efforts, could not catch the cunning bandits. Soon, the police are charging a famous singer named Red, because they found a secret passage in her mansion leading to a recently robbed vault.

Only the intervention of the greatest private detective of all time, Sherlock Holmes, as well as his faithful assistant and close friend Dr. Watson, is able to protect an innocent performer from an unfair accusation. Only brave and attentive partners can track down the villains and return the stolen valuables. The duo of detectives will be helped by old acquaintances, restless Tom and Jerry, who by their actions turn a serious investigation into a string of incredibly funny situations. Ahead, a cheerful couple is waiting for a large number of mind-blowing adventures filled with dizzying episodes.