Lifespan

After the brainy Dr. Ben Land (Hiram Keller) discovers that a colleague has concocted a drug that can slow the aging process to a crawl, he soon becomes embroiled in a struggle to obtain the elixir. In a bid to prevent the serum from falling into the wrong hands, Land locks horns with a Swiss industrialist (Klaus Kinski, at his oddball best) who'll stop at nothing to acquire the potion (including using nursing home shut-ins as guinea pigs).