The film tells the story of Olga Sergeevna, a renowned oceanographer. Throughout her life, Olga Sergeevna loved only one man, with whom she was never destined to find happiness.

Timofey Suvernev comes to Moscow from a distant island to study. Tim successfully passes the exams at the institute, and immediately plunges into a turbulent student life. Through hard work and study, he achieves brilliant success, his student work, which he wrote together with his classmate Galtsov, receives a gold medal at the competition.

For the first time, Natasha saw Elektron Yevdokimov at the Polytechnic Museum, where she came with Feliks. Then she really liked the confident speaker. Relations with Feliks didn't work out, and Natasha, leaving home, became a flight attendant — that is what she called her new profession. Once in a cafe, before the next flight, Natasha saw Yevdokimov. They met and began to meet. They experience their feelings for each other in different ways. By the power of her love, Natasha makes Yevdokimov understand what love is.