Butterfly, forged from steel

At the request of a girl he likes very much, the best detective in St. Petersburg, Lieutenant Colonel Goncharov, investigates a strange story regarding the detention of her stepfather. A respected man, a doctor of sciences, and former rector of a prestigious university has been held in a cell for almost a year. The basis for the detention was the testimony of the rector of a provincial branch, who was caught taking bribes and embezzling. Both the statement of this lady and her very identity raise doubts for the experienced detective, which he tries to dispel or confirm. As a result, he himself finds himself in great trouble…