I saw this horror movie about 3-5 years ago I think. It involves house, with a door in the main hallway that can only be seen from a mirror in the bathroom. The woman who lives there was a photographer. I think the house was supposed to be in L.A. , the movie was in color and in english. It was a hidden house or room within a house by the use of spells by the builder decades ago.
Thanks for any help!