Spiders II: Breeding Ground. 2001.
A couple adrift from their sailing Yacht are picked up by a freighter boat, unaware the doctor on board is conducting experiments on humans with Spiders.
This film seemed to start of well then became a total abandon ship towards the end, I get the feeling the makers were trying to rip off Alien, instead of the spiders bursting out of the chest it was more the stomach area. Richard Moll plays the demented doctor hell bent on creating a new species of spider from a human host by kidnapping people from other boats in their area. The acting was decent enough but this was ruined by bad CGI effects that make it more laughable than terrifying.
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