Simultaneously sumptuous and gorgeous, garish and grim, this is a re-working of Pinocchio for the neo-liberal era. Rachel Maclean’s dark fairytale, which represented Scotland at the Venice Biennale 2017, depicts a brash and baroque binary world of poverty and riches where the prospect of easy wealth tempts even good boys like Pic into bad ways. But if everyone believes the lie, what’s the problem?