This popular horror classic picks up where Dracula left off. Dr. Von Helsing (Edward Van Sloan), thinking he has rid London of all vampires, is instead arrested for murder. Just when Von Helsing’s fate seems sealed, the bodies suddenly disappear. Soon several people are found mysteriously killed, their bodies drained of all blood. Meanwhile, beautiful and mysterious Countess Marya Zaleska (Gloria Holden) appears in London. The troubled woman seeks the understanding Dr. Garth (Otto Kruger), Von Helsing’s psychiatrist, for consultation. A mysterious sequence of events surrounding a disoriented young girl (Nan Grey) leads Von Helsing and Garth to deduce the countess must be a vampire. They set off to Transylvania after the elusive countess to rescue Garth’s beautiful fiancée (Marguerite Churchill) in this engrossing thriller.