Episode Description: Beware, spoilers! To read - hover over the text.
Found the bodies with great concentration feromona in the blood. This hormone causing high blood pressure and sexual arousal. The killer is a member of the sect of Shifters. They live in isolation and accept the fruits of civilization. Cultists can change your gender, and after death pass through clay cocoon and continue to live. In the end, all sects, sensing danger, vanished leaving a large circular track in a wheat field.