"Most of what she told me about herself is a cover story. She is a British Intelligence Officer. How far would she go to get information out of me? The answer is, quite far."

A young woman is found dead. Her sister sets out to find out what happened, and stumbles into a world of secrets and subterfuge that makes her question who Justine really was. How well can you ever know someone who lies for a living?

Dawn King's debut play Foxfinder was "thrillingly original" (Time Out), "a contender for new play of the year" (Guardian) and a "spell-binding dystopian parable"(Independent). It is nominated for the first James Tate Black Prizes' Drama Award. Now, in Ciphers, she has written a smart and provocative thriller about spies, double agents, and the opaqueness of the human soul.