does anyone know where to find this movie?

It's not really a web site. It's a protocol like the internet protocol (TCP/IP). You have to find the torrent and then you have to open that torrent with a Bittorrent client.

I doubt IMDB would like me talking about that so I would do some Google searching on Bittorrent if I where you and research it.

I got the House boxset in the UK for £8 (about $16). Make sure you can play Region 2 DVDS on your player, if you can, you're in for a treat.

This Anchor Bay DVD boxset contains the following:

HOUSE
ANAMORPHIC WIDESCREEN picture
- Audio: 2.0, 5.1, DTS
- Audio Commentary Sean S. Cunningham, Steve Miner, Ethan Wiley and William Katt.
- Trailers.
- Bios
- Making of/EPK from 1985


HOUSE II: THE SECOND STORY
ANAMORPHIC WIDESCREEN picture
- Audio: 2.0, 5.1, DTS
- Audio Commentary Ethan Wiley, Sean S. Cunningham.
- Trailers
- Bios

HOUSE III: THE HORROR SHOW (on screen title is just THE HORROR SHOW)
ANAMORPHIC WIDESCREEN PICTURE
- Audio: 2.0, 5.1, DTS
- Bios

HOUSE IV
ANAMORPHIC WIDESCREEN PICTURE
- Audio 2.0, 5.1, DTS
- Audio Commentary with Lewis Abernathy, moderator (forgot who) and a guest appearance (no joke) from AVATAR director James Cameron, who praises one scene as "the most disgusting scene in cinema history". Cameron is friends with Abernathy.
- Bios

So, no extras for House III, but a good presentation none the less, and the others all get good presentation and a commentary. Great set!