In the 1970s, Kim Sung-geun (Sol Kyung-gu), a small-time man, wanted to become an actor, but he suffered countless setbacks. By chance, he got the opportunity to interview for an actor, but he and other people who passed the preliminary test were ruthlessly beaten. When he was dying, he learned that he had passed the final selection. It turned out that a mysterious organization in a certain country was planning a conspiracy for the North-South talks, so it ordered Kim Sung-geun to imitate Kim Il-sung vividly in a short period of time, and he got deeper and deeper in the process. In the 21st century, Kim Sung-geun's son Kim Tae-sik (Park Hae-il) was driven to debt and desperate. When he planned to sell the old house left by his father, in order to get his father's seal, he took his father who lived in Kim Il-sung's world back from the hospital. The head of the great socialist country and the useless capitalist son finally returned to the same roof...