Similar type of film?
I can't remember it well, I watched it over 15 years ago I think, I can only remember a virus or maybe alien type infection that causes people to become extremely dangerous?
I remember a scene where the main women is talking to a old man who feels it taking over his body and jumps out the window to his death.
The other scene I remember her friend (or husband) or something, is on the phone to her while in a carpark and a infected kid on a skateboard gets him.