And which "House" might that be?

A Serbian Film - Birth/rape scene.
Hostel Part 2 - When the dogs get fed.
Insidious - Ending.
Dead Silence - When Mary appears in the crawl space.

The 1977 Japanese one; 90 minutes of utter insanity:

As a kid - child's play 1 when you just his feet running.

Hostel 1 - the Achilles tendint is cut

Hostel 2 - the end which made me an innie instead of an outie for an hour

Insidious - the Darth Marl face behind the husband.

saw 1 - the ending

The Human Centipede - The "sh!t, I have to sh!t" momment

That scene in Hostel Part 2 made me cringe.

Yeah I think that is the only scene in any movie that made me turn my head and cringe. I still remember sitting in the car after the movie going "ahhh it will be alright"

Haha. When I saw it in the theater I look over and see this family sitting right behind me with their kids. I was like, WTF?!

i know they been said but Sleepaway Camp ending that was great film, and ending to saw was classic never guessed for one moment he was there.Not mine but my girlfriend jumps every-time to the descent :)

When Alex is brutally beaten after being sodomized in Irréversible. I thought the rape was bad....but it got a lot worse!

Inside
 

Inside: The Woman comes to Sarah's door and asks to come in to use the phone. Sarah says no because her husband is sleeping. The Woman: "Your husband's not sleeping, Sarah. He's dead." Then a short while later she's standing over Sarah while she sleeps. And then pretty much the rest of the movie.