Grimrock

or it a decorative door ?

http://cs620422.vk.me/v620422257/1a3f1/vu6crD1MeLg.jpg

There is no decorative door in Grimrock

If you mean directly this Iron Door, it can be opened by solving the under/over puzzle. Find the note with hint first...

confused, too many notes )
i randomly return to any unsolved secred and already forgot
places and notes where i take it.

http://youtu.be/vzP7_PP5vc4?t=6m59s
His Russian is therapeutic, lol, but you will get the idea
@ 6:59

omg , im lost this scroll "over and over and over again" many hours early , and tries used it in a wrong place in another location (sewers)

Thanks, !!