Russell Kane, a thoroughly deserving nominee, was the surprise winner of the Edinburgh Comedy Award (ECA) - the bookies’ money was on young American Bo Burnham - with a show that explores his troubled relationship with his late father, a man with some very right-wing opinions on life and politics. Kane describes Smokescreens and Castles as “an elegy” to his dad, but it could equally be described as a riveting and frequently hilarious socio-political documentary on a working-class boy made good, the first member of his family to go to university and now making a living in the liberal arts.