Lainey Pike can tell you everything you need to know about the people in her family just by letting you know how they died. Her reckless stepfather drove his motorcycle off the highway and caused the biggest traffic jam in years. Her long-suffering grandmother lived through cancer and a heart attack before finally succumbing to a stroke. And Lainey's mother, well, Lainey's mother hung herself in the basement just days after Lainey's high school graduation.
Now Lainey's five-year-old brother is an orphan and her estranged older sister is moving back home to act as be his guardian. Meanwhile, Lainey's boyfriend is thinking about having a family of their own, and her best friends are always asking the wrong sorts of questions and giving advice Lainey doesn't want to hear. As she tries to pull away from everything familiar, Lainey meets an intriguing new guy who, through a series of Slurpees, burgers, and snowballs, helps her to make peace with a parent she never understood.