Big Excitement

Okay, as more and more promo materials come out I am getting more and more excited about Big. Coming from a place of ambivalence I'm starting to look forward to June 4.   From what I understand it will be a situation where the body of Gong Yoo's doctor character will be inhabited by a teenager's soul with the added complications of the doctor's fiancee and the teen's girlfriend.  The inherent complications of this should be a fount of both comedy and drama.

I'm particularly interested to see how the Hong Sisters will handle the body situation.  Is the doctor "dead"?  Has his soul moved on?  And is the teen's body in a coma or has it died as well?  Also, who has a better claim, the fiancee of the body or the girlfriend of the soul?