This is an automatically translated description

Never before has a Windham police captain been embroiled in such a nasty story. Never before has his career hung by such a thin thread. And why? Because opium is not good for you. It took a lot for the captain to realise this. It is he and Sergeant Banerjee who will be tasked with investigating two mysterious murders and securing the visit of the Prince of Wales, who has decided to spend Christmas 1921 in Calcutta. Of course, these two will cope with everything, because new incredible adventures await them....