The attic door next to the wine cabinet is currently locked. When I tried to open it she said that her mother must have locked it before they left the house. It seems like something that can be used locked, especially since you can interact with it and there's a suspicious red wire going up. How do you get into the attic in the Finch house?
I don't think it is possible to gain access to the attic at all. Later on in the game you do get to the other side of the door, but I don't think it can be unlocked.
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