Good movie but the lead character wasn't the brightest.
Kim, good looking and a good actor, but his character wasn't too bright. Spoilers!
The moment he knew the serial killer was off his radar he should've put his entire family in hiding. Instead he goes to have a chat with another serial killer friend, who tells him the obvious - this guys going to get revenge on his family. Then he seems to leave the hospital and get into his car before making any phone calls to warn the brood. That whole thing could've been avoided if he had thought things through a bit more. Or just offed the guy to begin with.