There's a a new villainess in town, and Batwoman tries to establish her reputation as "The Bat" by bringing her to justice. Meanwhile, Alice blackmails Catherine, Mary gets a new patient, and Kate discovers the pitfalls of a double life.

A new killer murders two victims, and the GCPD reaches out to Batwoman to help them. Jacob doesn't want a masked vigilante helping them and launches his own search for the killer. Meanwhile, Alice and Mouse talk about their future together, and Mary and Sophie have a heart-to-heart.