The Information Services Agency is asking for help from a strange type. Dressed as a booth actor, he calls himself the heir to an ancient Scottish family that is being hunted. Larissa and Renat would have mistaken his visit for a prank, however the next day they discovered the corpse of an unusual visitor in their own office. In the hand of the murdered invitation to the ball in the old castle of Glamis. A prerequisite for participants is fancy dress. How will the forced reincarnation of the White Lady and Count Bierdy turn out for detectives? And how do they know a terrible opponent under the guise of one of the ball guests?