An extraordinary psychological study of an incestuous sibling relationship. In the time span of about twenty years in a small town environment, relationship of siblings, Jana and Mirek is changing, and they are, in addition to love, linked to hatred. The feelings of double guilt affect the characters of both siblings, who in vain attempt to escape one another in their acquaintances. The curse of love is stronger. Initially, the dominant Jana, after wedding to a doctor loses influence on her brother, who, desperately seeks a long-lost balance in relation to lonely Olga. Jana, however, does not want to lose her strange brother and becomes an unwanted victim of another crime.