The Mummy Interferes

Transatlantic spies fight for a Hungarian invention which would protect humankind from all evil but it could be not be mass produced before the next five-years plan in this country. The checquered briefcase of central importance is carried by an engineer of the patent agency over hill and dale, by train and by plane. Múmia, an outstanding figure of the police team led by Fáraó, gets also involved in the complicated chase story. After both gangs are neutralised, the engineer can calmly marry one of the gang leaders: the blood chilling Hidegarcú Hölgy (Cold-Faced Lady), more exactly his double because, as it turns out, this all is only a parody, and the invention is not anything else but a collapsible umbrella. (official distributor synopsis)