One of the last films of Boris Karloff to be filmed in his lifetime. He also starred in three other films which, like this one, were released theatrically in Mexico in May of 1968 and then were both sold and released directly to television in the U.S. after his death on February 2, 1969 between 1971 and 1972.
The drawings hung throughout the "Benefit Foundation, Employment for Young Women" scene in the film were drawn by the Spanish artist Francisco Goya.
Some of the voices in this film were dubbed.