A pastor who believes in divine revelation and a detective haunted by visions pursue a missing person case — exposing their own demons in the process.

At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part.

Dong-chun, an elementary school student overwhelmed with seven afterschool learning academies, stumbles upon a mysterious bottle of rice wine during a school retreat. As the rice wine ferments and emits strange sounds like Morse code, Dong-chun sets out to unravel its identity and discovers the secrets of the world and the reasons behind her current way of life.