"A grudge is a sentiment that is chained down and cannot move. That fixed sentiment becomes sadness, and when that sadness remains chained with no escape…it becomes hostile…” Baek-On and Ho-Yeon are freelance exorcists who travel across the country hunting for grudges and ghosts. Every encounter uncovers a tale of tragedy and loss, feelings they know all too well from their own lives. Yet at times, the violence of the most murderous spirits pales in comparison to the cruelty of the living.