A struggling detective novelist recently read a self-help book about how to be happy. Actually, it’s about how to tidy. As she cleans her house, the novelist excavates her own personal history, and the history of the planet. But as she discovers troubling gaps in her memory, a series of clues lead her closer to an answer she may not want to find. Tidy examines the holes in our lives that we try to fill through consumption, and how we decide what to keep and what to leave behind. Who and what will survive the sixth mass extinction? And will it spark joy?