Elisa sets up an altar, unaware that the Witch has entered her house. Elisa realizes that there is a pattern behind the crimes. Casasola manages to deduce that there should be a new sacrifice. The Witch leads Elisa to a place where everything is darkness.

A body appears on the Island of the Dolls. This crime increases the relevance of the ritual killer case. Mejía and Mondragón realize that Casasola always supported the ritual killer theory, and led and distracted them with his speculations.