Inspired by real events, The Serpent reveals the story of serial conman Charles Sobhraj (Golden Globe nominee Tahar Rahim) and the remarkable attempts to bring him to justice. Posing as a gem dealer, Sobhraj and his girlfriend Marie-Andrée Leclerc (Jenna Coleman) travelled across Thailand, Nepal and India in 1975 and 1976, carrying out a spree of crimes on the Asian ‘Hippie Trail,’ becoming the chief suspects in a series of murders of young Western travellers.