As ex-detective Jackie Malton re-examines the horrific killings in Thailand that Sobhraj is accused of, forensic psychologist Paul Britton examines Sobhraj's childhood and motivation

Experts interview key witnesses to the Thai murders. And a forensic psychologist sets out to establish whether Sobhraj is a psychopath.

At a final interrogation of suspected killer Charles Sobhraj, the big question remains: is he still a dangerous man?