I watched this movie not long ago, its a foreign film in Spanish, TOTALLY worth the subtitles
The original title is "Mientras Duermes" and it translates more like "as you sleep".
The story is centered around the main character who is a bald super creepy sociopath janitor/receptionist who is beyond obsessed with one of the female tenants.
This film made me want to lock my door... hell, change my locks.... trust no one!
Very well made
A creepy-licious find.
My only complain would be the cheesy "american music" but that's inevitable in foreign films apparently
And stop being nice to the doorman ;)