Follows a group of Oxford students, one of them becomes the collegiate talk of the town by conducting study into the mysteries of Ancient Egypt. Can the horrible sack of bones known as Lot No. 249 come to life thanks to these experiments?

An Oxford student, Abercrombie Smith, recounts to his friend that his neighbour, Edward Bellingham, is using a revived Egyptian mummy to murder his social and romantic rivals. Following this meeting, Smith returns to his college, confronts Bellingham at gunpoint about his "perversions", and forces him to destroy the mummy and the associated artifacts. However, in the closing moments it is revealed that Bellingham has a second mummy - "Lot No. 250" - which he uses to continue his killing spree.—The Professor