The Bulgarian intelligence officer Emil Boev is residing in Bern, close to Bulgarian political emigrant Goranov. The Swiss and German women Rosemary and Flora are interested in him. Goranov is killed. Boev searches his apartment and finds few fake diamonds and the list of the spies in Bulgaria. Boev and the boss of a foreign intelligence service Benton are stuck in a bunker together. At the decisive moment, Flora appears and Boev manages to get away with the list of the spies. Boev is on the way to Bulgaria.
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