The world of Mood Indigo is a stained-glass cartoon kind of a place, where the piano dispenses cocktails, the kitchen mice dance to the sound of sunbeams, and the air is three parts jazz. Colin is a wealthy young aristocrat, a slim, innocent creature who loves easily. The instant he sees Chloe, bass drums thump inside his shirt, and soon the two are married. Typically generous, Colin gives a quarter of his fortune to his best friend Chick so he can marry Chloe's friend Alyssum. But a lily grows in Chloe's lung, and Colin must spend his remaining fortune on the only available treatment: surround.