Theatre review: Exit the King

"He thinks he's the first person ever to die."
"Everyone is the first person ever to die."

That’s the exchange at the heart of Exit the King, and the real gut-punch in what is, somehow, the first time the National Theatre has ever staged a play by Eugène Ionesco. King Bérenger (Rhys Ifans) can command the sun to rise and set, win global wars with the force of his will alone, kill anyone who displeases him simply by ordering that their head fall off, and though technically mortal will only die when he chooses. Except suddenly none of this works. Bérenger deciding his own time of death was dependant on him choosing something within an average human lifespan, and at 483 years old the choice has been taken out of his hands. After a three-day illness his nation has shrunk, the army is down to one Guard (Derek Griffiths) who can’t even hear, let alone obey the king’s orders any more, a huge crack has appeared in the palace wall and Mercury has collided with Saturn – but only in the skies above Bérenger’s kingdom. Outside its borders, everything goes on as usual.