Locked door problem.

[Som1Lse]

I have a simple level with four rooms.
Everything works perfectly, enemies appear when they should, sanity is given at the correct moments etc.
There is however one problem.

When you try to open a locked door a enemy is activated and destroy the door and you have to sneak past it and open another door.
No problem there.
My problem is that when the enemy breaks free, another door closes. Thats also fully intended but in case the enemy kills you you re spawn at the other side of the door and it is locked, thus you cant complete the level and have to start over.

I have searched but I didnt find any answer to my problem.