Cha Young Min is a genius doctor but arrogant and selfish. One day, he gets involved in an unexpected case; his spirit possesses another doctor's body. These two doctors are complete opposites, with personalities and medical abilities.

Cha Young Min is a brilliant doctor with an attitude problem. But when an unexpected case leads him to possess the body of another doctor, all of his selfishness and arrogance is put to the test. With two doctors now inhabiting the same body, their differences in personality and medical abilities will be on full display. Will Cha Young Min be able to use his own genius to resolve this strange case? The answer awaits.—oliur-93392