Fake shaman Sin-nam is a 20-something graduate of a shaman school. Chung-dam is a real deal, who is possessed by a child god. And swindling shaman Sung-joon is a middle-aged, whose prime, along with the ghost inside him have all but left. The3 men battle their skills to seize redevelopment district and compete to be the best shaman.

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.

After an unexpected accident, a group of soldiers are admitted to a military hospital, hoping for a brief and peaceful recovery. But instead of rest, they find themselves trapped in a different kind of nightmare.