With the city reeling from Maladie's opera debut, Mundi takes a personal stake in tracking her down, while Amalia launches an investigation of her own. Meanwhile, the charitable Lavinia Bidlow seeks to destigmatize the Touched at a society event, Hugo Swann enlists Lavinia's younger brother Augie to help monetize his illicit enterprise, and a deranged doctor conducts a series of experiments.

While Mundi seeks justice, Amalia and her most trusted advisors make a list of potential enemies. Harriet, Primrose, and the other Orphans attempt to decipher a message. Later, Amalia exposes an unexpected threat.