Escape from the Nanny

Nanny does not like visitors and if she sees somebody in my house, it definitely will beat him. Climbing into her apartment, it was the most difficult to escape from it. But in each apartment has a spare key and all you need is just to find it. Of course it is in the safe, and all you have left is easy to find from this safe key. Solve all the puzzles that will meet on the way.