If you can imagine Mike Leigh directing an In the Loop-esque deadpan comedy embedded within a British version of The Sopranos, in which Tony is an embittered ex-hippie in passive-aggressive conflict with his pot-dulled but surprisingly ruthless adult son, then you might be able to wrap your head around Down Terrace, which won the juried Best Picture and Best Screenplay prizes in the Next Wave competition at Fantastic Fest on Monday.