My Son My Son What Have Ye Done (2009)

Brad (Michael Shannon) has committed murder and barricaded himself inside his house. With the help of his friends and neighbours, the cops piece together the strange tale of how this nice young man arrived at such a dark place; Based on a true story, this gripping and unnerving blend of deadpan comedy, melodrama and raw tragedy is fleshed out by an expert cast, including Willem Dafoe and Chloe Sevigny