But for Ben, the chance to earn a few pence is too great and secretly he does odd jobs for them.

And there's a bigger secret: Renata, a World War Two refugee, is on the run in the city. Hetty is determined to rescue her. The web of secrets begins to unravel and there are lives at risk. Can Hetty and Ben overcome their differences and save Renata, or are they just meddling in things they know too little about?