It was the 70s in Asia.
A French serial killer, Charles Sobhraj, drugs, kills, robs his victims: young backpackers in search of spirituality on the road to India.
Solitary since 2003 in a prison in Kathmandu, where he was sentenced to life imprisonment for two murders, the "Serpent", 77, is suspected of being involved in more than a dozen assassinations in Thailand, India and Nepal.
Its modus operandi: to charm, drug, kill, rob its victims, young travelers in search of spirituality on the “hippie route”. 3 French people who crossed paths with Charles Sobhraj in 1976, tell us how they survived their encounter with the "Serpent".