A story of a first love between two recent high school graduates who meet one another evening before start of the WWII.
A Soviet scientist creates a brilliant robot. This is a boy who is able to solve any mathematical problems, he writes the best essays and sings perfectly! And he is also an exact copy of schoolboy Seryozha Syroezhkin. A clever boy quickly shifts all his duties to an electronic double. He does his homework for him, goes to school and does household chores that his parents entrust to Syroezhkin...
Svetlana, young pretty girl, works as a trolleybus driver in a small town and almost all her permanent passengers are at least a little bit in love with her.
