A wealthy CEO faces a criminal investigation amid tragedy, trauma — and a supernatural threat. The Usher family learns an informant lurks among them.

Pym digs up disturbing information on Verna. With her marriage on the decline, Tamerlane hosts a turbulent product launch that shatters expectations.

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.