A drab woman scientist, working on machine to harness solar energy, and a pert concert singer look-alike being courted to play her in a movie swap identities and find personal growth, professional success, love, and happiness.

• Mosfilm
• Lyubov Orlova
• Nikolai Cherkasov
• Mikhail Sidorkin
• Faina Ranevskaya
• Rostislav Plyatt
• Rina Zelyonaya
• Nikolai Konovalov
• Garen Zhukovskaya