James is enjoying a lazy summer with his best friend, Emily, until one day he comes across a key. It looks old, unlike any key he's ever seen. Unfortunately, the last person who had the key ended up dead. Other people want the key, but James isn't willing to just let them have it. He and Emily want to figure out what it unlocks first. With the help of their new friend, Otis, James and Emily go on an adventure across the city they live in, Las Vegas, trying to stay one step ahead of the people after them, while following clues that will lead them to what the key opens.