After school one day, Frankie, a lover of physics and astronomy, has her first sexual experience with quiet and gorgeous Benjamin—and gets her period. It’s only blood, they agree. But soon a gruesome meme goes viral, turning an intimate, affectionate afternoon into something sordid, mortifying, and damaging. In the time it takes to swipe a screen, Frankie’s universe implodes. Who can she trust? Not Harriet, her suddenly cruel best friend, and certainly not Benjamin, the only one who knows about the incident. As the online shaming takes on a horrifying life of its own, Frankie begins to wonder: is her real life over?