Reality Kills (2002)

Reality TV puts seven strangers in an isolated house, with a creepy caretaker living in a nearby trailer.  They'll be in there with no outside contact for a number of months and as the show  progresses, the cast will vote off one of their own until only one person is left. The last person will get a big cash prize.

When a camera people disappears and is found dead, the cast think it's part of the show.  When they realize it's not, they panic as they aren't sure whether a killer is stalking them or one of their own is the murderer.

Nothing much to this one.