Wealthy IT specialist Stepan Guryev, while working on a historical project, discovers Yakov Bruce’s map. Soon, the programmer’s body is found inside a pentagram, with a mysterious symbol on his chest. Svetlana Somova, an expert in history and cultural studies, joins the investigation into the mysterious death. It turns out that Bruce’s map is not merely a historical artifact, but a possible key to solving an entire series of crimes taking place in the past and present.