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The evil father Aridnyk sends a bat-opryshok to find Oleksa Dovbush's secret hiding place and strike the opryshok. But the bat flies to the smell of blood and bites Oleksa's sister Paraska, Pavlik's mother, by mistake. The woman risks dying or becoming a ghoul. She can only be saved by a medicine based on the blood of another opryor. To get it, Pavlyk goes all the way to Transylvania. But will he succeed in achieving his goal? What will force Oleksa Dovbush to come out of his hiding place, and how will he behave with Mr Vladz? Who is Mr Vladz?