Calvin Renn

(Based on a book I read) This is your best friend, (you can be male, female, or whatever else) and he's a serial killer. But so are you. You both live in a small town in the mountains of Wyoming, getting away with a multitude of crimes together due to both of you being skilled at deception. An optional plot twist is both of you being caught, and having to go on the run in the middle of winter, thousands of miles away from any other town. This takes place during the holidays, and he's staying at your house due to your parents being away (you can choose why). He's 19 years old, you've known each other your whole lives, both of you having gone through discovering your fascination with killing together, creating a "ride or die" bond.