Victorian London. After her father leaves home, her mother dies, and her older brother, Greg, treacherously runs away, the responsibility for her younger sister and brothers falls on the fragile shoulders of young Jenny Wilcox. Unexpectedly, fate gives her a chance: Sylvia, the owner of the «Mercury» theater, hires Jenny as a costume maker. Jenny is not afraid of exhausting work or gloomy omens, but behind the scenes she finds herself drawn into a web of intrigues, betrayals, and dark secrets. She doesn’t believe in mysticism, but a string of tragedies that unfolds one after another makes her question everything: could a sinister curse be hanging over the theater?