Ballet dancer Sanine may have murdered his first wife. A detective thinks so, and he's not the only one.

Edinburgh, 1831. Among those who undertake the illegal trade of grave robbery is Gray, ostensibly a cab driver. Formerly a medical student convicted of grave robbery, Gray holds a grudge against Dr. MacFarlane who had escaped detection and punishment.

Driving through New York City in his Sexmobile, Dr. Harrison Rogers of the Bureau of Sexological Investigation, searches out luminary figures in the world of sex.

A young archaeologist believes he is cursed by a mask that causes him to have weird nightmares and possibly to murder. Before committing suicide, he mails the mask to his psychiatrist, Dr. Barnes, who is soon plunged into the nightmare world of the mask.