More than two hundred years ago, Fyodor, the illegitimate son of Count Romadin, having arrived in Rome to study painting, became a witness to a terrible and shameful secret. It concerned his Italian friend Sergio and his patron Cardinal Farnese. After the terrible death of Sergio, Fedor leaves for Russia with his friend’s beloved Antonella, passing her off to the priest as his wife. Wanting to avenge the death of his friend, Fyodor painted a picture castigating the sins of Cardinal Farnese and other saints. And then a misfortune happened... Count Romadin was killed, the estate was sold... Fyodor and Antonella were forced to hide. They are destined to part forever. And now, two hundred years later, the people of the next cardinal are pursuing the descendants of Fyodor and Antonella, trying to find and destroy the painting...