“Fans of insanely cheesy cinema are going to adore ‘Nightwish’… If you’re willing to accept the film for what it’s worth, then ‘Nightwish’ is ready and willing to satisfy your cheap B-grade urges.
—Bloody Good Horror
“Nightwish” features roadkill, alien cocoons, a dude that pisses his pants, zombies, a retarded gate keeper, severed fingers, and tarantulas.
—80’s Horror Central
“Between the “twist” ending and the equally “twist” beginning, four idiot students go to a house with a nasty reputation to help an obviously unhinged parapsychology professor do some tests and end up facing ectoplasmatic “ghosts,” scary apparitions, slug-like alien parasites, reanimated dead and a variety of other mismatching ideas before they all go bye-bye.”
—A Wasted Life
“Eventually, everybody is tied up and doc’s slow-witted assistant Stanley (Robert Tessier) is killing people who don’t cooperate (the “finger” scene is unexpectedly disturbing).”
—Horror Fan Zine
Cook is certainly a competent director. He has some nice shots, and Dean’s fate is inspired.