Description
An expedition led by Professor Fuchs (Keir) locates the unmarked tomb of Tera (Leon) an evil Egyptian queen. A cabal of priests drugged her into a state of suspended animation and buried all of her evil relics with her. Fuchs is obsessed with Tera and takes her mummy and sarcophagus back to England, where he secretly recreates her tomb under his house. For days "before her birthday," his daughter Margaret (also Leon) - who bears an uncanny resemblance to Tera and was born at the instant they recited her name - has recurring nightmares. Fuchs gives her the old queen's ring and tells her to "wear it always." Of course, this only makes matters worse. Queen Tera's evil power begins to tempt Margaret, as she learns how she's feared by her father's former colleagues.
Margaret notices a man lurking in the vacant building across the street. He is Corbeck (Villiers), an expedition member who's now her father's rival. Corbeck wants to restore Tera to life and he persuades Margaret to help him gather the missing relics. The problem is, each time one is given up the person who'd held it dies. When they have all the relics, Corbeck, Margaret and Fuchs begin the ancient ritual to reawaken Tera. At the last moment Fuchs learns that the queen's revival will mean Margaret's death. Together Fuchs and Margaret overpower and kill Corbeck, as the house quakes above them. Queen Tera awakens and kills Fuchs, but not before Margaret stabs her. Margaret and Tera are grappling over an ancient dagger when the house finally collapses on them.
Later in the hospital, we see a woman whose face is wrapped in bandages. We're told she's the sole survivor, and that all the others in the Professor's basement were "crushed beyond recognition." The bandaged woman slowly opens her eyes and struggles to speak. But who is she, exactly - Margaret Fuchs or Queen Tera?