UNIC investigates the brutal murder of Susana and Dalina Suárez, found in a macabre ritual: tied to chairs and with their lungs destroyed by compressed air. A man with white tunic and an eagle head stated that they were sacrifices "to the air". While a suicide note signed as "Yellow and Aqua" seems to close the case, the detectives discover other similar crimes connected to the Zodiac. The victims, all under 21 years old, share patterns that point to a killer obsessed with astrology. Convinced of his cosmic role, the culprit ensures that his sacrifices are necessary to preserve the universal balance.
