Writer Jack Boyle created a timely adventure for the character of Boston Blackie Dawson in this mystery (at least it was timely in 1922) -- here the reformed crook gets tangled up in the affairs of a Grand Duchess who has escaped from Soviet Russia with some of the Romanoff jewels. A blind beggar gives Blackie (Lionel Barrymore) the jewels, which are wanted by the United States government. He knows that he is also being followed by a gang of terrorists who want to get their hands on the gems. Until he can get them to their rightful owner, he places the jewels in a safe that's wired with electricity. Petrus (Louis Wolheim) and his associate trace the booty to Blackie's home and a vicious fight breaks out. But when Petrus tries to open the safe, he is electrocuted. The crooks are rounded up and Blackie returns the valuables to Grand Duchess Tatiana (Seena Owen).
by Janiss Garza synopsis