How to get through this door, and where is the key? (The Witcher 3: Wild Hunt)

Well, I turned it on, there is nothing there, the door is highlighted, but it says closed.

clavanyo I
also thought for a long time how and with what to open. The whole house ran around, the spoon-key did not fit, it has a different role.
In the end, I just scored, which I advise you, there are still many other interesting quests ahead xD

if you disenchant a monster, he will give a key

Nikotinoz_ actually,
I cast a spell on him, or rather her, she lives in my house.

clavanyo
Me too, and she did not give the key.

clavanyo
Dmitry Romanovsky
hmm, she gave it to me and said that it was her dowry. there you will first need to inspect the barrels

The key can only be removed from the body of the monster. Just outside the door

Nikotinoz_
Well, I examined the barrels, took the dowry. I go to the door - you can't open it, because. no key.