Make it people would love it, though I'd say the opening ends with the place being on fire so as the cat needs to escape and that's where the separation stems from, because I couldn't imagine just forgetting my cat.
That just made me think you could also make the game where the family abandons the cat and it hunts them down and kills them, same premise though, in the end the cat finds the family.
Because what you see that we call mold is the fruit of a vast root system. In hard cheese if you can cut an inch or two in every direction from the mold you likely will get the root system with it. With a soft cheese (or bread) that root system is likely spread through the food pretty thoroughly.