okay i have to find this film.

[feastfan82]

Okay the movie start showing a small run down houdse that looks like a slaughter took place in it with flies going around. I remember their are later in the movie security guards in the room where they monitor cameras is wiped out by this psycho. The movie has a lady in the building trying to find out whats going on i thinks shes locked in with the psycho its a huge office building. There is a part where she goes up to the penthouse to talk to the owner of the building but hes already been killed. the last part i remember is that their is a guy who broke into the building that ends up helping the girl from the psycho. hope someone has seen this

[BoyScoutKevin]

It's out there, as I've seen it, too, or, at least some of it. But, I can't think of who's in it, or the title, or anything the previous poster hasn't already mentioned. Maybe somebody else can provide some more information about it.