In 1977 Berlin, a young American dancer named Susie Bannion arrives to audition for the prestigious Markos Dance Academy. She swiftly impresses the head choreographer, Madame Blanc, and secures a spot in the company. Unbeknownst to Susie, the academy is run by a coven of witches who derive their power from a dark, supernatural force. The sudden and unexplained disappearance of another student, Patricia, raises suspicions among some of the remaining dancers and staff. Meanwhile, Josef Klemperer, an inquisitive psychotherapist, becomes involved when one of Patricia's associates shares her concerns about the academy's sinister activities.

As Susie becomes more deeply ingrained in the dance company, she forms a close bond with Madame Blanc and earns a coveted lead role in their upcoming performance. Behind the scenes, tension grows as rival factions within the coven vie for control. Strange occurrences and disturbing visions plague Susie, leading her to question the true nature of the academy and its inhabitants. All the while, Klemperer's investigation uncovers shocking truths that point to an ancient and malevolent conspiracy. The story builds toward a climactic series of events that will test the limits of trust, power, and sacrifice.