I liked everything about this movie until the end. It felt too much like an action movie ending. To me the best ending to mystery movies is when the good guys outsmart the bad guy. And that almost happened when they found the napkin, but then the bad guy burned the napkin and ruined it. Apparently, they didn't expect that, so they went with an action movie solution. They won by brute force and blowing the place up. It's fun, but not as cathartic as outsmarting the bad guy even after the twist.