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Edge of Sanity (1989)

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When Henry Jekyll's experiments with cocaine have gotten out of control, he transforms into the hideous Jack Hyde. As Hyde he searches the London streets at night for his prey in ... See full summary »



(screenplay), (screenplay), 2 more credits »
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Title: Edge of Sanity (1989)

Edge of Sanity (1989) on IMDb 5.3/10

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Cast overview, first billed only:
Elisabeth Jekyll
Sarah Maur Thorp ...
Susannah (as Sarah Maur-Thorp)
David Lodge ...
Ray Jewers ...
Jill Melford ...
Lisa Davis ...
Noel Coleman ...
Briony McRoberts ...
Ann Underwood
Mark Elliott ...
Lanyon (as Mark Elliot)
Harry Landis ...
Jill Pearson ...
Mrs. Egglestone
Basil Hoskins ...
Mr. Bottingham
Ruth Burnett ...


When Henry Jekyll's experiments with cocaine have gotten out of control, he transforms into the hideous Jack Hyde. As Hyde he searches the London streets at night for his prey in whorehouses and opium dens. The police can't catch him, he has nothing to lose but his mind... Written by Mark J. Popp <>

Plot Summary | Add Synopsis


Anthony Perkins hasn't been himself lately! See more »


Horror | Thriller

Motion Picture Rating (MPAA)

Rated R for strong perverse sexuality/violence/gore and drug use | See all certifications »

Parents Guide:




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Release Date:

14 April 1989 (USA)  »

Also Known As:

Edge of Sanity  »

Filming Locations:


Box Office


$102,219 (USA)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:



Aspect Ratio:

1.85 : 1
See  »

Did You Know?


The last film of David Lodge. See more »


Version of Dr. Jekyll and Mr. Hyde (2002) See more »


Il Trovatore
Performed by Leontyne Price & Plácido Domingo
Courtesy of RCA Victor Red Seal A division of BMG Classics
See more »

Frequently Asked Questions

See more (Spoiler Alert!) »

User Reviews

Perkins in near porn masterpiece
21 May 2004 | by (Minneapolis MN USA) – See all my reviews

I've had the unrated version for this, since about the time I started buying tapes. Gerard Kikoine (once a Jess Franco disciple!) really cuts loose with this one, and he brings Anthony Perkins along for the ride! Despite ubiquitous art direction that sacrifices much for the "look" ( the lab has numerous beakers, all filled to the same level, with blue liquid. What it is, I don't know). Perkins really goes off as the respected scientist, who unleashes his inner self through experiments with the new drug, cocaine. He even somehow, apparently creates some sort of Crack, that can be lit with a wooden fireplace match!?! Production values are surprisingly high! Like a friend of mine said, I could almost buy into the idea, that Jack The Ripper was a sexually frustrated scientist experimenting with new drugs. Lush, often restrained, but also often quite gory. Probably more in tune with 70's arty euro-porn, than the history of horror films, this is often quite disturbing, and Perkins is at his best. Almost assured of a better reputation as time goes on. Don't miss, at least once.



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re-rated r uncut? deathangel_70
What is this - a cross between Jack the Ripper and Jekyll + Hyde??? anthonyinaction
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