Dong-hyun is a high school student. One day, he falls from the rooftop and bumps into Pan-soo who is a passerby. Pan-soo is a member of a criminal organization. When the two men wake up in the hospital, they discover that they have switched bodies.

A gangster's quest for revenge is sidetracked by an encounter with his target's mother in this deeply-felt hybrid of a crime thriller and a family drama.

Korea's leading modern literature writers Kim Yu-jong, Lee Hyo-seok and Hyun Jin-geon revive literature with pictures. "Spring", about the youthful romance of the 20s, "A Lucky Day", about the terrible sadness of the 40s and "Buckwheat Flower" is about the lingering memories of the 60s.