Noob VS Evil Granny

Your girlfriend has been kidnapped! She is missing for a few days now.
Police didn't do anything about it. Looks like you need to take an action. Find and rescue her.
That night you got a mysterious letter that says.
"I god her. She is in the abandoned house on the outskirts of the city! Come rescue her, if you have courage?"

W A S D to walk around
Mouse to Look around
Left Mouse Button to Fire
Right Mouse Button to Aim
Mouse Wheel To Change Weapons
G for Grenades
R to Reload
F to Pickup Items
Left Shift to Run
Lef