can't clear the control options on screen?

[Dahl]

After starting the game i can't clear the paper showing the controls.

I press ESC and it allows for the game to proceed it would appear as i see a dude walk in and then hear knocking.
But cannot actually see behind it to play the game.

Here is a screenshot before (darkened) and after (guy walking in from top right) pressing ESC key.
https://imgur.com/a/4YTPMi9