Our newly assembled Librarians crew investigates a mysterious “dancing sickness,” leading them to a showdown with a powerful magical factioneer at a professional ballet company.

When a Librarian from 200 years ago reappears today, he brings back to life a long-closed magical Library and accidentally resurrects an evil Drekavac. The Librarian, along with a quickly assembled team, must stop the Drekavac before it can kill and multiply.