Dr. Mabuse has a new base under a theater, a place that is putting on a play about the French Revolution but really, it’s just a place for dancer Liane Martin (Karin Dor, You Only Live Twice, Assignment Terror) to take a steamy bath. Something for daddy, as they say.

Anyhow, Mabuse wants an invisibility machine and he’ll kill for it. Or at least his new henchmen will, who include Walter Bluhm as a murder clown. Only FBI agent Joe Como (Lex Barker) — Perry’s brother? — can save the day. There’s also a mutated scientist, if you have a Letterboxd list of those.

Released in the U.S. as The Invisible Horror, this was directed by Harald Reinl, who also made Chariots of the Gods, Mysteries of the Gods, The Torture Chamber of Dr. Sadism and The Strangler of Blackmoor Castle.

The Eureka box set Mabuse Lives! has this movie, along with an introduction by genre film expert and Video Watchdog founder Tim Lucas, a new 1080p presentation from a 2K restoration of the original film elements undertaken by CCC, a commentary track by film historian and author David Kalat, and an alternate ending. You can get it from MVD.