On a Sunday in 1993, sixteen-year-old Elisa Claps went to church in Potenza, Italy - and was never seen alive again. Elisa's family are convinced that Danilo Restivo, a local boy with a fetish for women's hair, was responsible - but he is never charged. Tobias Jones goes in search of the truth about Restivo, on a trail that takes him from the families caught up in the murders to the highest echelons of Italian power - and finally to justice.