The stories about the owners of a locket become strangely similar… On a Sunday Mass, Bernard, an inquisitor of the Dominican order, sees the beautiful townswoman Margarita Sittow and loses his peace of mind. Instead of fighting heresy, he yields to temptation. Dreaming of the fair-haired beauty, Brother Bernard makes a deal with the devil. To get what he wants, he only needs to take the golden locket that protects its owner. The amulet is stolen, and the woman finds herself in the inquisitor’s power. But then the inquisitor has to feel, in his own skin, what deals with the devil lead to: beautiful Margarita is executed on charges of witchcraft…
Many centuries later, the protective amulet ends up in the hands of a modest editor, Oksana Karaseva. But he is unable to protect her from the neighbor’s intrusive attention—someone who sold his soul to the devil for Oksana’s love.