After a failed cryptocurrency gamble, Mu-jin finds himself jobless, broke, and separated from his wife. Urged by a friend, he studies and passes the labour attorney exam. With no clients and heavy pressure to succeed, he opens a tiny office but still struggles to pay the rent. However, an idea from Hee-ju starts to get the ball rolling.

After a near-death experience, Mu-jin strikes a strange deal with a mysterious figure named Bo-sal. But in return, he begins to see terrifying ghosts with grudges. Haunted by the spirit of Min-uk, Mu-jin gets pushed to investigate the unsafe factory where Min-uk died. Gyeon-woo goes undercover as a new hire and meets Nimal, a migrant worker afraid to speak out, but as the truth surfaces, the team is exposed and forced into a desperate retreat.