It is 1940 and twenty-year-old Charlotte Richmond watches from her attic window as enemy planes fly over London. Still grieving her beloved brother, who never returned from France, she is trying to keep herself out of trouble: holding down a typist job at the Ministry of Information, sharing gin and confidences with her best friend, Elena, and dodging her overbearing father. On her way to work she often sees the boy who feeds the birds--a source of unexpected joy amid the rubble of the Blitz. But every day brings new scenes of devastation, and after yet another heartbreaking loss Charlotte has an uncanny sense of foreboding. Someone is stalking the darkness, targeting her friends. And now he's following her. As grief and suspicion consume her, Charlotte's nerves become increasingly frayed. She no longer knows whom to trust. She can't even trust herself...