Fifteen-year-old Kevin has acne, and not just any acne. Stinging red welts, painful pustules, and massive whiteheads are ruining his life. In an act of desperation, he asks his dermatologist to prescribe him a drug with a dizzying list of possible side effects -- including depression -- and an obligatory monthly blood test. But when he meets Alex, a girl in the lab waiting room, blood test day quickly becomes his safe haven -- something he sorely needs, since everyone, including his two best friends, is trying his last nerve. But as Kevin's friendships slip further away and he discovers who Alex is outside of the lab, he realizes he's not sure about anything anymore. Are loneliness and self-doubt the side effects of his new acne meds? Or are they the side effects of being fifteen?