Political thriller based on a story of coup against Bolsheviks by the Left Socialist Revolutionary Party in Moscow on 6–7 July 1918. They assassinate German ambassador in Moscow in hope of gaining public support and dragging the country into new war with Germany.

When a small state is threatened with capture by a much stronger one, only one thing can save it: the emergence of a competitor comparable to the invader. In a graceful and witty play by Scribe, hostilities unfold around a young officer, in whom the modest saleswoman of a jewelry store, the omnipotent Duchess of Marlborough and the Queen of England herself fell in love at the same time.

Things take an interesting turn for Tanya and her mother when her father arrives with his foster son Kolya and new wife. This film is about Kolya and Tanya's bright, pure and bitter first love.