Director Brett Leonard's FEED is a tough movie to watch. It makes you squirm but that's the point of the film, to push boundaries in order to demonstrate that what is considered "normal" to one person may be utterly insane to another.
An Australian detective, who looks remarkably like the late Oliver Reed, goes to Ohio to expose the source of a potentially fatal web-site that caters to men who like their women HUGE. In fact, they may be being fed to death. The movie goes back and forth from his unhappy life and investigation to that of the man who is running the web-site, who appears to be utterly normal. He is indeed keeping a woman "captive", as he continually feeds her so that she's so huge she can't leave the bed. In a flashback we get a glimpse of the one of the reasons he does what he does-we see that his mother was like gigantic as well and he ultimately hated his mother.
The make-up effects are convincing and the movie is shot in such a way as it's almost a docu-drama. Highly recommended be be warned you're in for a ride.