Teenage ghostbuster Kat is back, but this time, traveling halfway around the world might not be far away enough to escape from whatever is haunting her!

As Passport to Paranormal sets off for Beijing and Seoul, Kat is ready to take her ghostbusting abroad. She hasn't seen the Thing since Argentina, but weird things have been happening ever since.

Kat's handwriting is appearing in strange places and the film crew on P2P gets footage of two Kats. Mi Jin has a theory: it's a doppelganger. But Kat needs a solution, and fast, because whatever the Thing has become, it's lashing out at the people Kat cares about most. And what did the Thing mean when she promised Kat's mother that the old Kat would soon be gone, and the new Kat would come home... forever?