David Fincher’s Seven ends with its serial killer caught and Brad Pitt’s character exacting justice, only it doesn’t feel like good triumphing over evil. The film’s final, devastating reveal is so bleak, Fincher even added a new line of dialogue to soften the blow, yet the note of optimism that’s sounded by Morgan Freeman’s closing narration still rings hollow. It also leaves us wondering: Is the world a fine place? And what exactly are we fighting for—or against? Here’s our Take on how Seven’s ending challenges our ideas of order and chaos, sanity and insanity, and right and wrong, posing a difficult question about the world and who we are.