Well this has been on my mind for months now. I have looked everywhere but can't find it. I only remember part of the movie.
Please someone help me I'm losing my mind over it, well here it goes.

Its about a guy in a house, I believe a bathroom or kitchin he tears down a wall en goes through it and ends up in a weird place. Mabye hell or something, a really dark place and there is water, like a lake or something.
I believe it's a horror film not sure its bin at least 10 to 15 years since I saw it.

Someone??

That sounds like House (1986): http://en.wikipedia.org/wiki/House_(1986_film)

Quote:

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Eventually Cobb finds what appears to be an entry into a sinister otherworld—through the bathroom medicine cabinet. Looking into the void, he is pulled into the darkness by an unseen creature. In the darkness however, he fortuitously locates his lost son, Jimmy.

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Wow its ideed the movie I was looking for
Thks a lot ;)

You're welcome. I am glad I could help.