Motivated by money and revenge, Perry hosts an exclusive masque-rave that takes a twisted turn. A young Roderick pitches a revolutionary new opioid.

Leo adopts a black cat who soon brings evil — and a mysterious woman — into his home, while Roderick struggles with terrifying hallucinations.

Victorine inches closer to testing her heart technology on a patient until tensions erupt between her and Alessandra. Dupin makes a chilling confession.

A furious Frederick sets out to handle unfinished business. Madeline receives an ominous message at an old haunt. Dupin grows wary of Roderick's motives.