When a young Vietnamese girl goes missing in Scotland, DI Birch knows there is more to the case than meets the eye. Her colleagues won't take it seriously - but Helen's instinct tells her that Linh is in mortal danger. Beatrice knows something terrible has happened to three young people in Edinburgh. She can see them in her mind's eye - frightened and alone, desperate for help. Ever since she was a child, she's had visions of the future - and she's ignored them before, with dangerous consequences. This time, she must help the police find Linh. When a second woman goes missing, DI Birch is forced to pay attention to what Beatrice is saying. But will the police listen to the truth in time? Or is it already too late?