It’s bizarre to see a screen luminary like Huffman, who won an Oscar playing a transgender woman in Transamerica in 2005, close up in a 200-seat venue in Finsbury Park. But her decades of theatre work, particularly with David Mamet, shine through. Her Paige exudes a kind of bleak glee at the implosion of her world but her language is always intricate, precise and sharp. Her explanation of how everyone in the world is trans, black and gay is a particular delight. Without her, the show would be hard to swallow.