'"I must warn you it's the hardest play in the world to read. I got to page 15 and thought 'I have no idea what is going on'." It's not exactly what you'd expect the director of a new play by an acclaimed playwright to confess. But that's what Kirsten von Bibra, director of Tom Holloway's Sunshine tells me as we finish our chat. That said, she is full of praise for the work and says Holloway is "quite brilliant".'