This film tells the story of the work and life of energy workers who are working hard to keep their country electrified, their lives bright, and their hearts burning. Mendea is a 4th-grade mechanic. He loves his job as a electrician who distributes electricity to homes and also loves Saran, a beautiful girl. However, Saran did not truly love the young man with the colorful uniform, the busy schedule, and the average salary. Saran met a rich company director and cheated on Mendea. When her love failed and she was in pain, Burne, who had worked with Mendea before, but who was not good at his profession and earned money by stealing, came and convinced him to do a big illegal job. When Mendea arrived a little late to her teacher, Burnea, who was in a hurry, made a mistake while connecting the electricity and got into a serious accident. When Mendea arrived at the last moment, she was able to save Burnea's life.

Ganaa, a city boy who has just finished 11th grade. Tsovoo, a naive girl who came to the city from the countryside to study. They both unfortunately lost their first year of student fees. They choose the easiest way to make money. Sergeren, the director of a money-making company, seduces young girls. His wife Namuunaa loves her husband very much. Because she blames herself for not having children until she was 30. Sergeren Tsovoo and Namuunaa Ganaa meet by a strange coincidence and cause a problem of 650. In the next room of the hotel, his wife is having fun with a guy 10 years younger than her, while Sergeren spends the night with a girl who is out of her league.