The Drums of Jeopardy

Dr. Boris Karlov seeks revenge on the Russian Royal family who he blames for the death of his daughter, a ballet dancer. He is sent away to prison but years later manages to get out during the Russian revolution. The royal family escapes to America where Karlov begins tracking them down and sending them a piece off a necklace called "Drums of Jeopardy" which means they will die in 24 hours.