Siblings are a total drag, right? Especially when they're trying to claim your kingdom. Mary Stuart - the classic play by German playwright Friedrich Schiller - gets a fancy new adaptation by the genius that is Robert Icke (currently Associate Director at Almeida Theatre, where he has overseen 1984, Hamlet, and other triumphs), now being transferred to the West End after a sold-out run at Almeida. The play follows Mary, Queen of Scots, in her final days, imprisoned by her jealous and vengeful cousin Elizabeth I. This production is buoyed by powerhouse performances from Lia Williams and Juliet Stevenson, who swap roles each night based on the toss of a coin. Well, that's just showing off.