I have the same issues with this film as any number of the films it's clearly taking cues from. The script is so wrapped up in the minute details of operation that actual character development is nearly lost in the mist. Fassbender's titular Killer is entirely defined by his profession and nothing more. What is learned or changed about him between the beginning of the film and the end? He's stoic, deliberate, and can feign empathy. That's really all there is the work with, even when plans go horribly awry and he appears barely phased. The biggest challenge his philosophy faces is done through an overly long monologue telling an allegorical joke. His determined coolness drastically outweighs any potential for hard confrontation or emotional variance in pacing. I wish I could at least say it looks great, but there are a lot of scenes that I can only describe as feeling cold and "too digital". The largest action sequence is shot almost entirely in obscured, disorienting darkness. (Not to mention Fincher trying to sneak by St. Charles, IL for New York City. Nice try, buddy.) Any notes on this tying it to modern capitalism appear like just that: a note. It's a wide-armed gesture more than a thematic element. There's no revelations or discoveries to be found in here. It feels like a film that's only about anything on an extremely surface level. The barest definition of "character study".