There is a cat in this house and it appears to be very hungry but it is probably too tired to look for food. It has been cleverly waiting for someone to come inside the house and you are the first one to enter the house. The cat quickly locks the door as soon as you enter. The cat then puts up a condition before you and the condition is that you find all the food items and then the exit door will be unlocked for you to escape from the house. It will not be an easy search because there is a long list of items that the cat has for you.