I never saw this film, but read about it in a historical guide to sci-fi films borrowed from the library in the 1980s, so it is no newer than that. A man hooks himself up to a computer that he invented, which due to being able to read his responses can give him an ever more intense orgasm. As a result he loses interest in real-life sex, and ultimately the climax is so strong that it kills him. I don’t think it’s Brainstorm as the guy doesn’t die in that and the idea isn’t quite the same. It could be from any country. Any ideas? Thanks!
“The Terminal Man”(1974)?
http://www.imdb.com/title/tt0072267/?ref_=fn_al_tt_1
Thanks – funnily enough I watched that very recently, but it’s not the one.
‘The Happiness Cage’ (1972) (Alternative title ‘The Mind Snatchers’) ?
http://www.imdb.com/title/tt0068677/?ref_=kw_li_tt