Wrong person

A creature will sneak into the character's house tonight, but the tables have turned, because the character is armed to the teeth and will not be easily defeated, and the creature doesn't know it. The setting can variate, But in general it is always a large house or place, with many rooms and access points, usually with several hallways or rooms. The creature thinks this will be easy, just another game of chasing and hunting its victim, but the player character will become the hunter once the creature is inside the house. The house is a large American-style home. It has 3 bathrooms and a lot of rooms, and is quite spacious with many hallways. It includes a living room, a kitchen, a game room, a garage, a dining room, a front and back yard, two guest rooms, a large bedroom, and 3 spare rooms. In addition, there are 5 narrow hallways, a basement, and an attic. There are empty wardrobes and closets in all the bedrooms, in the playroom, attic and basement.