The development of the serum in the werewolf experiment fails. Michel makes a decision that could cost him dearly. Celina makes revelations to Elizabeta, who decides to come to Brazil.

Celina helps Flora. The day arrives for Juan to undergo the procedure Carol worked so hard on. Luna makes revelations to her mother. Elizabeta arrives in Guarambá.

With the full moon, werewolf hunters mobilize. In the laboratory, Luna and Juan are under the vampires' surveillance. Having recovered, Flora overhears a conversation that leaves her furious.