"In Serenity, Minnesota, everyone looks on the bright side, and that’s on purpose: to live in this town, people have to agree to talk positively and only focus on the good things in life. For twelve-year-old Mackenzie Werner, who has the rare gift of her emotions showing up as a colorful haze around her body, this town seems like the perfect place; she’ll never face the embarrassment of a grumbly grapefruit smog if everyone and everything is set...