Plot. Dying invalid in an English castle sends invites to famous/successful people around the world with the promise of an inheritance. Characters begin dying in weird ways and the inheritance turns out to be succeding the old man as the "Devil on Earth".
I think it's called 'The Legacy' or something similar. I can't find it in any database. I may be a made for TV movie.

This?

The Legacy (1978) - IMDb (http://www.imdb.com/title/tt0079450/?ref_=fn_al_tt_7)

This?

The Legacy (1978) - IMDb (http://www.imdb.com/title/tt0079450/?ref_=fn_al_tt_7)

Yes. Thank you. I just can't find a copy. Great to have the date.

Amazon.com: The Legacy: Katharine Ross, Sam Elliott, Roger Daltrey, Richard Marquand: Movies & TV (http://www.amazon.com/Legacy-Katharine-Ross/dp/B00023P4U6/ref=sr_1_1?s=movies-tv&ie=UTF8&qid=1383019592&sr=1-1&keywords=the+legacy)

The Legacy DVD 2004 025192557927 | eBay (http://www.ebay.com/itm/The-Legacy-DVD-2004-/400582131150?pt=US_DVD_HD_DVD_Blu_ray&hash=item5d448e3dce)

It's also on Netflix.