This luxurious mansion, equipped with the latest in computer technology, has long been a legend among the locals. They say that all its owners did not die a natural death. Some of them died in a car accident, others went crazy. But the most unlucky of all was the last mistress, who had just recently entered into inheritance rights. She was found strangled in her own bed. The next heir, Bronislaw Zelensky, is very concerned about this circumstance. He doesn’t want to repeat the fate of the previous owners of the mansion and therefore turns to the famous private detective Tatyana Ivanova for help...