Two U.S. Marine investigators looking into a series of grisly murders in Manila discover that the crimes are tied to an amulet with a 400-year-old curse on it that has unleashed supernatural forces.

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Cast

Cast overview, first billed only:
...
Col. Joe Haines
...
Andy Buck
...
Sharon Gale
...
Admiral
...
Tony McKee
Joonee Gamboa ...
Sen. Belfardo / Chief Pirate
Joe Mari Avellana ...
Han Chin (as Joe Avellana)
Rolando Tinio ...
Prof. Olmeda
Marilyn Bautista ...
Julie
Frederick Bailey ...
Navy Doctor (as Fred Bailey)
...
General (as Crispin Medina)
Cris Vertido ...
Sung Tzu
Noel Colet ...
Esteban Belfardo
Rina Reyes ...
Madeleine
Rey Malte-Cruz ...
Roberto
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Storyline

Two U.S. Marine investigators looking into a series of grisly murders in Manila discover that the crimes are tied to an amulet with a 400-year-old curse on it that has unleashed supernatural forces.

Plot Summary | Add Synopsis

Genres:

Action | Thriller

Certificate:

R | See all certifications »
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Details

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Release Date:

9 February 1990 (USA)  »

Also Known As:

Heartstone  »

Filming Locations:

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(re-release)

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Did You Know?

Trivia

Andrew Prowse replaced Brian Trenchard-Smith as director. See more »

Connections

Referenced in Why Horror? (2014) See more »

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User Reviews

 
Mildly entertaining mix of action flick and supernatural horror.
5 October 2005 | by (Chyby, Poland) – See all my reviews

A beautiful television correspondent finds herself possessed by a vengeful demon, a former Chinese mystic who was slain by a Filipino warlord 500 years before.Before the mystic died he swore he would slowly destroy all of his descendants.Before the mystic died he swore he would slowly destroy all of his descendants.The mystic makes good on his promise and the victims are killed ritually and branded with the mark of the dreaded demonstone to prove the revenge.The reincarnation of the warlord,now a corrupt Filipino politician,tries to find the killer,but has no luck until an American Marine,Tony McKee is found near one of the most recent victims.The politician immediately frames him for the death."Demonstone" plays better as a straight action flick with lots of gun fights,the horror sequences actually seem out-of-place.The acting is decent,the action almost never lets up,unfortunately the horror moments are poorly done.6 out of 10.


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