Poong, the Joseon Psychiatrist

Famous physician Yoo Se-yeop finds himself unable to practice medicine after a traumatic event. Just as he’s about to end it all, a woman intervenes.

Se-yeop is reunited with Seo Eun-u and searches for the person threatening her life. Se-yeop changes his name to "Se-Pung" after meeting an old lady.

Rumors spread after a body is found with the liver removed. A royal inspector with ulterior motives investigates, and a sleepwalking girl is accused.

Se-pung is forced to send a woman with a hand tremor away without a proper exam. When next they meet her, Se-pung’s footman is suspected of murder.

Se-pung rushes to find a killer and save his falsely accused footman. Cho Tae-hak plots to get rid of those with knowledge of the former king's death.

Se-pung trains Eun-u to treat patients in his place. When they see a boy suffering at the hands of his family, they try to help — but may be too late.

Gyesu Clinic owner Gye Ji-han is forced into selling the clinic. Se-pung and Eun-u see a suspected arsonist faint and try to figure out why.

The clinic staff sets off on a perilous quest for medicine after an epidemic breaks out. Ji-han senses that something is off, but hides what he knows.

Se-pung is told to leave if he wants to live, but he chooses another way. When Eun-u is attacked, he changes his plans to investigate her case.

Cho Sin-u is found in critical condition. A high-profile patient visits the clinic, sending Se-pung on a mission to uncover a long-concealed truth.