Okay - so no Adrianna key - and unable to smash it. If you can get a master lock pick at the thieves guild that will do but if you can't do that, don't worry - there is no SUPER treasure behind the door - the the normally randomly generated treasure for this area of the game.
The only other alternative would be to hack a key - and I don't think it is really worth the effort.
Wish I could have been of more help (and I would have responded sooner but I just got home from Best Buy
)
Wyv