The worst Shyamalan film I have seen yet.
Not sure where he was going with this but from the trailer it shows you that the trap is set at a concert and that a trap is in place to capture the serial killer so he can't escape.
Well the concert trap did not last long in the movie and then moved away from that.
I honestly thought it would reveal a big twist like it does in most Shyamalan movies but sadly not.......and is no different to any other serial killer movies.