The Invisible Man Returns / The Invisible Woman / Invisible Agent (Retro Horror Triple Feature, Volume 3)

THE INVISIBLE MAN RETURNS: The owner of a coal mining operation, falsely imprisoned forfratricide, takes a drug to make him invisible, despite it's side effect:gradual madness. THE INVISIBLE WOMAN: An attractive model with an ulterior motive volunteers as a guinea pigfor an invisibility machine. INVISIBLE AGENT: The Invisible Man's grandson uses his secret formula to spy onNazi Germany.