USA Up All Night Nostalgia: The Invisible Maniac (1990) | The Cadaver Lab

On this episode of The Cadaver Lab, we dive into one of the strangest horror comedies to crawl out of the video store era — The Invisible Maniac (1990).

Imagine a homicidal mad scientist who finally discovers the secret to invisibility… and immediately uses it to spy on high school girls before going on a full-blown murder spree. That’s the basic premise behind this bizarre cult film written and directed by Adam Rifkin.

Originally airing during late-night cult movie blocks like USA Up All Night hosted by Rhonda Shear, this 1990 oddity blends teen sex comedy, slasher insanity, and classic mad-scientist tropes inspired by H. G. Wells’s novel The Invisible Man.

Starring Noel Peters as the deeply disturbed scientist Kevin Dornwinkle, the film follows an escaped psychiatric patient who perfects an invisibility serum while posing as a high school teacher. What follows is a chaotic mix of locker-room hijinks, outrageous murders, and some of the most unapologetically sleazy moments you’ll ever see in a cult horror comedy.

Along the way we talk about:

The bizarre plot and unforgettable kills
The film’s connection to classic invisibility stories
The era of late-night cable movie blocks
The absurdity of 80s and early-90s teen sex comedies
The recent 4K release from Vinegar Syndrome and its behind-the-scenes extras

So grab a slice of pizza, crack open a Mountain Dew, and join me for a nostalgic trip back to the late-night cable horror scene.

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