When Professor Anthony Collins decides to catalog his Egyptian relics at Collinwood, he brings with him the mummy of King Rehotip, who "died" over two thousand years ago. Only the professor knows that Rehotip is really in a state of suspended animation.

One night, the professor brings the mummy to life. Suddenly a young girl is killed. The police suspect Quentin Collins. Maggie Evans, certain the killer is the mummy, wants to warn the police. Professor Collins threatens to accuse Barnabas if she does. Frightened into silence, Maggie lives in terror, wondering if she will be the next victim.