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.

After a wild bachelorette party with Lysa's childhood best friend, the team wakes up in rough shape and hungover, with no idea how they ended up where they are.

When graffiti starts coming to life and threatening a teenage girl, the team have to work out how these strange events are related to Gregor's Hammer -- and the imminent return of Gregor himself.