Several small companies specializing in public domain movies have released it. Beware. Some small distributors market copies of both public domain and copyrighted films with poor picture and sound. Others are more reputable and deliver good transfers of the best available prints. Shop around.
From a slab in the morgue, a dead young woman tells the bizarre tale of how she got there, through a maze of murder involving a hypnotist, a midget and a mysterious figure in a green mask.