In May 1968, while Paris was on fire, the naked and dismembered body of a young woman was found in a yoga position. The police begin investigating the murder of Jean-Louis Mersch. The victim's friends, Hervé and Nicole, also help him. When another female friend of theirs is murdered, they begin to think that death is lurking around them. When Mersch-Hervé and Nicole realize that these murders are connected to India, they embark on an adventure from Calcutta to Varanasi and discover the terrible truth on the banks of the Ganges River. But the karma is not over - there is one last stop left to confront the last circle of evil... Jean-Christophe Grangé - with three striking characters who change their own destinies while pursuing murders and with a never-slowing pace - once again explores the limits of evil...