How long do you hunt for the missing?

A horrible vanishing act...

When a young Josie Masters sees a boy wearing a red football shirt, Dylan Jones, being taken by a clown at a carnival, she tries to alert the crowds. But it's too late. Dylan has disappeared...

Thirty years later, Josie is working as a police officer in Bath. The remains of the body of a child have been found - complete with tatters of a torn red football shirt. Is it the boy she saw vanish in the clutches of the clown? Or is it someone else altogether?

And then another child disappears...