Elsa Keslassy International CorrespondentNetflix and BBC’s serial killer series “The Serpent” is one of the international shows whose filming was impacted by the pandemic, and required shifting production from Asia to Europe.The drama, which stars Tahar Rahim (“A Prophet”) as the French conman and mass murderer Charles Sobhraj, was on its last stretch of shooting on location in Thailand in late March when the country went into lockdown.