A quirky and high-stakes legal adventure where the law is forced to contend with the afterlife. The Firm’s clientele are spectral victims demanding legal closure for their unresolved justice. Shin I-rang is the unlikely conduit to this ghostly world. He is a timid, clumsy lawyer who inherited the ability to see the dead after setting up shop in a former shaman’s den. To represent his spectral clients, he must undergo involuntary possession, temporarily absorbing the ghost’s trauma and personality. Han Na-hyeon is an elite attorney driven by an insatiable desire for victory. Forced into partnership with him, she initially rejects his claims of ghostly clients. But as she witnesses the undeniable and bizarre events, finding that solving the wounds of the dead is the only way to finally heal her own hidden scars.