Unlike other critics here, I did not feel this movie was slow-paced or boring or uneventful. I think some people just need lots of action, murder and thrills when they watch anything these days. In my opinion this movie is very good, but not great. I think the main issue lies with the main character. Anyone who has lived in the south for a considerable amount of time has known a guy like Walden. The seersucker suit, bow tie-wearing, seemingly asexual, forever single goober who's everyone's friend and shows up at ever social function to talk everyone's ear off is a staple character in every southern town. You always sense there's something dark underneath that person, but you hope to heaven that darkness never comes out. Hirsch really gets ahold of that stereotype and manages to put some additional layers in to make the guy not totally creepy, annoying, or unrelatable. The problem is that I never felt like I could get on his side. It might be because neither his backstory nor his medical revelation seems as effectively sympathetic as the writer may have hoped, or because his actions seem more motivated by selfish, psychopathic desires rather than to rid society of bad people. I think the ease with which he commits these acts right from the beginning makes his psychopathic nature eclipse any sense of his main motivation being justice. Whatever the case, Walden is definitely a complex character, just not a likable one.