Taking place in the same universe as Riverdale, the show's exciting themes and character arcs are universal, and will grip Gemini right from the start. "Gemini is a dualistic sign; they are constantly making choices, right or wrong, high road vs. low," he said. The Chilling Adventures of Sabrina shows some contradictory impulses that the twins of the zodiac wrangle with on a day-to-day basis, and it's anything but boring.