Devil's breath

It's Friday, early afternoon and you are stuck at home watching your baby brother Alex. While your parents and siblings, Sophie, Marie and Marvin are at the yearly parent-teacher conference. Then a knock on the door changes everything. As your whole life as you knew it got destroyed. And the worst part is they made you do it. Now somebody claims to know who did it. Offering you a deal. They help you with your revenge but want your loyalty and future services in return. Do you accept the deal? Yes or No. The decision is yours and yours only.