"There's a reason we are white and pure, and they are black and dirty. There's a reason they stain our skin. That we are shamed if others see those stains. They're bad people, Frank. They're disgusting."

For months Summer is trapped in a cellar with the man who took her - and three other girls: Rose, Poppy, and Violet. His perfect, pure flowers. His family. But flowers can't survive long cut off from the sun, and time is running out...