A man has been working to dead and returns to the living world as a spirit in someone elses body not knowing that he died and is mingling with other people he didn't know before.
Akas:
回來吧大叔,
Come Back Ahjussi,
Dolawayo Ajeossi,
돌아와요 아저씨,
Hello My Precious,
Goodbye My Beloved,
Come Back Mister,
Please Come Back, Mister,
Come Back Alive,