Once upon a time, there was an old man who knew a lot about herbs and magic spells. Many people came to him at night for their happiness, and he helped them all (well, almost all) to find love. What was the secret of his magic potion and why did the old man still remain lonely?
The plant director gathers all the young people in one shop, entrusting them with both work and management. The experiment is unsuccessful, as the youth workshop did not become a collective. Young engineer Sergey, who heads the shop, realizes that only by uniting the youth, he will be able to work fruitfully and fight against marriage and indiscipline. Tsybulkin, who was chosen as a Komsorog, helps to realize the plan conceived by Sergey,. Two schools come to internship. One of them - Lisa Gromova, the daughter of the director of the plant. The shop staff and Sergei undertake to re-educate the maiden spoiled by her mother. Director Gromov himself helps them.
A Soviet trading ship sank into the Italian port. Sailor Roman went ashore. In one of the squares he heard singing. It was sung by Francesca. The sailor was delighted with her voice and beauty. They wandered for a long time that day on ancient streets and squares. And the next morning the war began. The Soviet ship had to urgently return to their homeland. It was difficult to part in love, but they believe that they will definitely meet.
