Has anyone seen this movie????

[monicakat]

I was talking to my boyfriend about this movie we both saw a long time ago but can't remember the name. It's a horror about some building that doesn't have a 13th floor because so many people died up there, like there was a murderer up there. So anyway, one day people stopped the elevator inbetween floors and pried open the doors and the killer was still up there. He kills with an axe, and I remember that the lighting on that floor was gas, and that's how it ends; the place blows up.

So if this rings any bells for anyone, I need the name of this movie! Just that I can't think of it is driving me nuts.