It is the eve of World War I in Baku, Azerbaijan. Ali Khan Shirvanshir, a Muslim schoolboy from a proud, aristocratic family, has fallen in love with the beautiful and enigmatic Nino Kipiani, a Christian girl with distinctly European sensibilities. To be together they must overcome blood feud and scandal, attempt a daring horseback rescue, and travel from the bustling street of oil-boom Baku, through starkly beautiful deserts and remote mountain villages, to the opulent palace of Ali's uncle in neighboring Persia.

Leila is a young classical pianist who dreams of winning international competitions and bringing awards to her beloved country Azerbaijan. She is also a proud daughter of the Communist Party. When she receives an assignment from her communist mentor to spy on a music shop suspected of traitorous Western influences, she does it eagerly, determined to prove her worth to the Party.