The original TV series had some pacing issues, but the characters and story set up were excellent. This movie appears to be the first of a series of self contained movie long episodes with the main characters from the original series. This movie has thrilling action with a fast pace. Baek So Jin doesn't appear until late but she is clearly the center and is defined by her actions as a new super hero. Reminds me of the Dexter character from the book series - not the TV series - who was literally possessed by a demon or evil spirit that resulted in a tense balance between good and evil. Dexter would offer up serial killers for torture and death to this demon to keep it and its influence on him in check. I look forward to seeing what they do with this demon possessed So Jin character. BTW the subtitles were horrible (e.g. she vs he) but the intended meaning is understood from the context.