just watched it in the theater. overall, it's a pretty good psychopathic thriller though there's still room for improvement

1. The actor's performance is definitely not as superb as those in the masterpieces of the same genre, like "Se7en", "Hannibal"...

2. There're a few discrepancies in the plot which are inexplicable to me. I hate to think that the director'd left a few loopholes there. But it seems I have to without choice.

If you need a psychopathic killer to give you some shocks in this season, it's not a bad option.