Um Chae-young

A clerical error in heaven leads to Yeon-woo's untimely death. To fix the mistake, she must live as another woman for a month.

Cheol Soo has a perfect appearance, but he is a bit slow. One day, his daughter Saet Byeol appears in front of him. Saet Byeol has been sick and she has been in the hospital. They start on a trip.

In a community center where a mass murder took place years earlier and it involves a paranormal investigator who discovers a door to another world.