A group of supernatural demon hunters known as "Counters," each with unique abilities, disguise themselves as employees of a noodle restaurant, while tracking down evil spirits that terrorize the mortal world.

Seo Dong-jae, facing a grim future due to his tarnished reputation as a corrupt prosecutor, is assigned a new high profile case. This new assignment pushes him to navigate a perilous balance between his prosecutorial instincts and opportunistic inclinations.