Two sets of identical twins are accidentally switched at birth. One pair, Phillipe and Pierre DeSisi, are aristocratic and haughty, while the other, Charles and Claude Coupé, are poor and dim-witted. On the eve of the French Revolution, both sets find themselves entangled in palace intrigue.
Archaeologists discover the final resting place of a boy king, removing the remains to be exhibited in a museum. By disturbing the sarcophagus they unleash the forces of darkness. The Mummy has returned to discharge a violent retribution on the defilers as the curse that surrounds the tomb begins...
Armitage runs a chemical company that is on the verge of producing a gas that causes temporary disability. Clearly the military want it but it is also sought by a group of Japanese. Both Armitage and Madam Greenfly hire different people in the same detective agency to guard the gas and steal it...
