I do find that your idea is really very good. Basically, I wanted to say more about it but this is my very first game and I wanted to keep it short and simple.
besides, I had made a sketch of the creature that we hear howling at the beginning and which prowls around the house. But I finally gave it a more direct use. It justifies the fact that the character rushes into the house without knocking on the door and cannot escape through the windows during the game.
(sorry for my English. I am French and I translate my answers on google translate)