"Tony" is the rare exception where the term 'indie horror' means smarter rather than just cheaper. On one level, it's a pretty simple premise (man commits crimes, man goes unnoticed until...), but on another, it a phenomenal character study of a man to whom desperation is a constant companion, to whose hobbies others would find sickness and perversion. All that and a highly effective performance by unnoticed actor Peter Ferdinando, as the titular killer.
Tony is a lonely fellow who idles away his days watching low-grade 80's action films. We see him desperately trying to make a connection with the uncaring world around him, but socialization is hard, especially if your second hobby is, well... killing people.