In this hallucination of a one-person show, a genderqueer teen who goes missing and their gay detective father come face-to-face with the supernatural and consciousness-devouring Theda Bara, the real-life vamp and silent film star of the 1920s. ON SET WITH THEDA BARA is part gothic coming-of-age story and part campy melodrama about identity consumption and the horror of not knowing who you are.