At the beginning of the 17th century, Russia was experiencing the tragedy of the Time of Troubles. This was the first civil war in the history of our country. Three impostors over the course of one decade took the name of Tsarevich Dmitry and tried to sit on the royal throne. Who were these historical characters who brought untold disasters to the state? What conditions gave “impostorism” such terrible destructive power? Was the fugitive monk Grishka Otrepiev really hiding under the mask of False Dmitry? The answer to these questions is given in his book by the famous historian, world-famous scientist Ruslan Grigorievich Skrynnikov.