This is a fact: Ryan Summers walked into Three Rivers College and killed thirteen women, then himself. But no one can say why. The question is one that cries out to be answered - by Ryan's mother; by Ishbel, the mother of the first victim; and by DI Helen Birch. But as the families' secrets come out, as the world searches for someone to blame the truth seems to vanish. Will cause you to question your assumptions about the people you love.