When radio host Dana received a call from a maniac on air and promised that she would become his victim, the girl considered it a bad joke. But after the first murder was reported on the news, she was no longer laughing. The maniac declared himself a hell-raising Vulk Heartthrob, who killed prostitutes in the twenties of the last century and remained undetected... In 1922, Princess Zinaida Valuyskaya ran away straight from the crown and got a job as a reporter in a social gossip newspaper. The killer, who called himself Vulk Heartbreaker, began sending her letters with detailed stories about his crimes. Zinaida's reports were interrupted by vague hints... Dana realized: in order to find the criminal threatening her, she must figure out who his predecessor was...