Soviet agent Fedotov is air-dropped into Nazi occupied land. He changes over into Mr. Ekhert, a German entrepreneur wishing to take advantage of eastern worker slave labor in occupied Ukraine. Ekhert (Fedotov) enters into a partnership with a German entrepreneur who's son, Willie, is a high ranking Nazi. Together they go to Vinnitsa, Ukraine and start a factory. Fedotov begins seeking contacts with headquarters, but faces problems when a Ukrainian Nazi collaborator manages to infiltrate the Soviet partisans.
Zoya Vladimirovna Strelnikova, a famous operetta actress, quits the theater and gets a nanny in a military hospital. There she meets the wounded major Peter Nikolayevich Markov.
A funny comedy about a lost twins and a lot of good people who are involved in a search for twins' parents.
