The cause of the problem was not 'immediately' clear. [=is was not known right away]
They live in the house 'immediately' [='directly'] behind this one.
We need to leave 'immediately'. [='at once', 'right away']
(..) - Everybody's having a good time. - Much too good a time. The place is to be closed. - But I've no excuse to close it. - Find one. Everyone is to leave immediately. This café is closed until further notice. Clear the room at once! On what grounds? I'm shocked to find that (..)1942 Casablanca
(..) others in between... ...or aren't you the kind that tells? I suspect Ugarte left the letters of transit with Mr. Blaine. I suggest you search the café immediately. If Rick has them, he's too smart to let you find them there. You give him credit for too much cleverness. (..)1942 Casablanca