St. Petersburg, 1912. The progress of the new century is coming, but human nature has not changed with it - people are still taking each other's lives, sometimes in the most horrific and unbelievable ways. Every time the police are unable to solve a gruesome murder with all their modern equipment, they call in the famous surgeon, 40-year-old Professor of Medicine Voskresensky, to help. The cases that Voskresensky investigates are the most inexplicable and horrific. Case after case, Voskresensky proves that behind these inexplicable crimes are very real killers who are unable to suppress the dark side of their desires...