By day, Florrie Fox manages Color Me Read bookstore in Georgetown, Washington D.C. By night, she creates her own intricately detailed coloring books for adults, filling the pages with objects that catch her eye. There₂s plenty of inspiration in her new apartment, a beautiful carriage house belonging to Professor John Maxwell, Florrie₂s boss. He offers the property to Florrie rent-free with one condition, she must move in immediately to prevent his covetous sister and nephew from trying to claim it. When the professor₂s nephew, Delbert, arrives, he proves just as sketchy as Florrie feared. But the following morning, Delbert has vanished. It₂s not until she visits the third floor of the store that Florrie makes a tragic discovery; there₂s a trap door in the landing, and a dead Delbert inside. The esteemed Professor Maxwell is an obvious suspect, but Florrie is certain this case isn₂t so black and white. Doodling clues, she begins to consider other colorful characters on the scene.