8 Jan 2021, 13:32 The Serpent on BBC One is a brand new, eight-part drama currently airing on Sundays at 9pm. It stars French actor Tahir Rahim as Charles Sobhraj – a serial killer who terrorised backpackers in south-east Asia in the 70s. It also stars Jenna Coleman as his accomplice Marie-Andrée Leclerc. It’s been over 40 years since the murderer wreaked havoc. So where is he now? Charles Sobhraj (Tahir Rahim) in The Serpent (Credit: BBC) The Serpent on BBC One The new, 70s-set drama tells the story of serial killer Charles and the hunt for him across the region. He was a master of disguise and deception, and often escaped the clutches of the police.