Vitya is a young car mechanic from Lubny who recently received a degree in psychology by correspondence. His dream is to go to Kyiv and become a professional psychologist, but for now he works at Vasilenko Family Car Service, which belongs to his father. His father, however, is sceptical about psychology, considering it useless.

Everything changes when Vitya accidentally helps his friend solve a personal problem. He uses an unconventional approach: he explains psychological processes through analogies with cars. His method works, and gradually he begins to counsel other clients right at the service station. News of the "car mechanic-psychologist" quickly spreads throughout the city, and people come to him with various life questions.

However, he has to deal not only with other people's problems, but also with his own. Vitya is faced with a difficult choice: to stay in his hometown, where he has already become indispensable to people, or to go to Kyiv to fulfil his dream.