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Originally released in Europe as simply Tromba, this German melodrama was distributed in the U.S. by Lippert Studios. The title character, played by Rene Deltgren, is a circus tiger trainer. To keep his beasts in line, Tromba utilizes hypnotism. This works so well on the job that Tromba begins mesmerizing women to do his bidding. To do this, he employs a special drug, a fact that proves to be his undoing when one of his castoff mistresses wreaks a terrible revenge. Most of Tromba was filmed through the auspices of the Krone Circus of Germany.