I really enjoyed this one. If you like series like Dexter or movies like American psycho, you'll enjoy this one. I discovered Seann on his role in American Pie, so I have watched all his movies. I think he is an underrated actor. He is great here on his role as a killer. I think he is simply amazing. Also, Stiffler's mom here is not funny or attractive.
Now serious, great step up from Seann and his mum.