With her newly completed PhD in astronomy, twenty-six-year-old Grace Porter goes on a girls trip to Las Vegas to celebrate. She's a straight A, work-through-the-summer certified high achiever who is not the kind who goes to Vegas and gets drunkenly married to a woman whose name she doesn't know, until she does exactly that. As reality comes crashing in, Grace must face the fears that make us human, the family scars that need to heal, and the need for connection in the messiness of adulthood.