(Mood Indigo)

Well-off Colin lives in a fabulous rooftop apartment overlooking Paris with his friends Nicolas, a chef and lawyer, and Chick, an aficionado of the philosopher Jean-Sol Partre. At a party, Colin meets Chloe, a “girl like a Duke Ellington tune” with whom he falls head-over-heels in love. Their get-togethers — a dance at a party, a visit to an ice rink and a trip across Paris in a cloud-shaped capsule — lead them to the altar. However, the couple’s idyll comes to an end after their honeymoon when a water lily starts growing in one of Chloe’s lungs. The only way to save her is to continuously surround her by fresh flowers in the hope that they will scare the waterlily away. It is not a cheap affair, and Colin spends all of his money to buy flowers. As her condition keeps worsening, and their apartment mysteriously deteriorates, Colin finds increasingly alienating and hard work to try to save Chloe from her illness…