Season 1

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, h…

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 …

To his shock, Mu-jin still encounters vengeful spirits and is even more stunned by the fine print in his six-month contract. His next case involves Cho Eun-young, a nurse consumed by revenge. Not only does she terrify h…

Mu-jin and his team look for evidence to reclassify Nurse Cho Eun-young's suicide as an industrial accident, aiming to hold the hospital accountable for covering up suspected workplace bullying and medical malpractice. …

Mu-jin's father suspects his mother of having an affair and asks him to investigate. When Mu-jin visits, he encounters a ghost, a close friend of his mother, seeking justice. Following his mother to her university, Mu-j…

With the protest shut down by police, Mu-jin and the workers regroup to form a union, vowing to fight to the end. However, when the university refuses to meet their demands, they have no choice but to go on strike. Just…

Mu-jin encounters the restless spirit of Yoon-jae in a hospital and discovers that Yoon-jae collapsed because of exploitative working conditions at a foreign-owned supermarket. With Yoon-jae in a coma, Mu-jin seeks inst…

When things look to be slowing down for Mu-jin and his team, a fire in a factory takes the lives of factory workers who all show up before him looking for help. As Mu-jin uncovers the extent of the factory's willful dis…

The flash drive and the witness vanish, leaving Mu-jin's case in shambles. Though morale is low, he resolves to keep fighting for the eight victims of the Buguk Warehouse fire. With Myungeum Constructions closing in and…

Mu-jin's push for a confession from President Kim puts everyone inside the poorly built Myungeum Tech Plaza in danger. As the structure begins to collapse, Assemblywoman Moon finally confronts the deadly consequences of…