Pinky Swears, Secrets and Murder

Have you ever kept a Pinky Swear that is so immoral, illegal and wrong that you want to tell people, but you can't? You can't because you swore to your best friend in the whole world that you would never tell and if you did you'd never see them again. Ever? That's kind of what happened with Sarah and Tammy. Sarah is Tammy's best friend. Tammy is Sarah's best friend. Sarah is one of those friends you have to keep an eye on every single second. You never know what she's going to do. Tammy is one of those friends who will take care of it. The two of them together are fun, loving and deadly. Will Tammy give Sarah's secret away or will she take it with her to her grave? After all, isn't that what you're supposed to do?