Josh lives with his step dad and little sister in an abandoned town. They finally get a new neighbour, but Josh didn't expect to get caught up in a suspicious family who throw his world upside down.

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...