I’ve seen this film many times and it never fails to grab me. Here’s a thriller where the suspense comes not from the protagonist’s fear of being killed, but from his fear of others being killed, making it a deeply human(istic) film (albeit an overwhelmingly bleak one).
Harry’s downfall comes from failing to compartmentalize, from not being able to continue suppressing his capacity for empathy. But in this world, in order to succeed, compartmentalizing is key. Truly investigating the consequences…