How the hell do I get out of the fisherman's room?!

[highpoly]

Ok, I downloaded the demo version of Penumbra Overture.
I'm in the fisherman's room. I got the wife's letter and I looked through every single object. Is it possible to open that locker somehow, and how do I get out of the room? or can I even get out?

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in the table open the drawer u will find the key