the silver key is used at the bottom of your room (opposite to the hole) that will link u to another corridor.. =P

To do an action, e.g. go through any door or pick up things press space bar.
-First go through the hole at the back of paris's cell.
-Go straight across the hall to the infirmary.
- Pick up pink syringe and sex doll.
-Go back out to the hall and go right to corridor c.
- Go into the guard room and pick up the prison key.
-Leave room and go left again to get to corridor c and through the hole to paris's cell.
- Go down to the front of the screen and press space to go through door.
- Go into the dealer's room, press space to talk to her and she'll give you a
drug for your syringe.
- Go into the junkie's room and she'll give you a lock pick for the drug.
- Go back into your room and put the doll in the bed. Then leave by the hole and go left.
- Go into the safe deposit room and press space at the middle cage to get your dog.
- Go left again and into the kitchen.
- The chef will give you food for your dog because he needs meat.
- Go through your room again to get to the starving room.
- She'll give you poison and go up to the mess hall and put the poison in his food
for the storage key.
- Go into the storage room which is on the left side of the screen and pick up the shovel.
- Go all the way right to the dumpster room and finish the half-dug hole.
- Put on the uniform to your left.
- You're free.....
- Note- if you don't put the doll in the bed paris will get beaten up, you may prefer to do that!