Jasper is thirteen years old and isn’t like the other boys his age. His synaesthesia paints his world in fantastical colours specific to every sound and word he hears. Then there’s his face-blindness, which prevents him from recognising anyone’s face: not his father’s, not his own, and certainly not which of the boys in identical school uniforms are bullies and which are friends.

But Jasper has seen a new colour, one that he’s never seen before: the colour of murder. He knows something has happened to his neighbour, Bee Larkham, but no-one else seems to be taking it as seriously as they should be – and Jasper can’t quite remember what happened in the kitchen, with the knife and the screams.

As he struggles to get to the bottom of the mystery, including his own role in Bee’s murder, someone out there is determined to stop him…