In Batwoman season 1, episode 4, "Who Are You?", Kate Kane struggles to maintain her "out and proud" identity while keeping her new life as Batwoman a secret. While dealing with a budding romance, she must stop a high-tech thief from stealing a piece of the Wayne family's tragic history. The Heist of Martha’s Pearls
A new villain named begins a jewel theft spree in Gotham, targeting "shiny things". Her primary target is Martha Wayne’s iconic pearl necklace , which is on display for an exhibition. Batwoman recap: Season 1, episode 4 - Entertainment Weekly