'Nitram' is a bleak and truly unsettling psychological drama

Nitram (Caleb-Landry Jones) is an intellectually disabled man who lives with his parents (Judy Davis and Anthony LaPaglia) and is prone to violent outbursts and disturbed behaviour. When he meets lonely heiress Helen (Essie Davis), he becomes more and more frustrated at home and moves in with her, but soon events in his life deteriorate to a point which leads toward something horrifying and unthinkable...