Twelve-year-old Emison prefers reason over impulse, but when her mom turns into a shadow and vanishes through their apartment wall, Emison's well-ordered reality changes. She embarks upon a journey into a mysterious shadow world, where she encounters an evil gang of color scientists called the Chromatics. Emison must navigate the strange new world and her own insecurities to rescue her mom from the evil gang. Emison's plan unravels when she changes into a flat-black shadow, and descends into the pitch-black land of darkness. To succeed in her quest, she must trust her friends and follow her instincts, which have always been wrong.