Froth on the Daydream (original title L'écume des jours, literally Foam of the days) is a 1947 novel by French author Boris Vian. It tells the story of a wealthy young man named Colin and his love for Chloe, a girl dying of a water lily in her lung. Other characters include Colin's best friend Chick, his girlfriend Alise, and Nicholas—Colin's cook and Alise's uncle.
The novel and its adaptations provide examples of:
- The Beautiful Elite: protagonist Colin qualifies at the start - he's wealthy, sophisticated and leads a worry-free lifestyle.
- Beta Couple: Chick and Alise.
- Betty and Veronica: Colin is initially interested in both passionate Alise (Veronica) and graceful Chloe (Betty); the dilemma is not maintained long, however, and Alise puts paid to it for good by choosing someone else.
- Body Horror: Chloe dies from having a water lily grow in her lung.
- Boy Meets Girl: boy dates girl, boy marries girl, boy loses girl to a mysterious disease.
- Downer Ending: and how! Even the mouse hangs himself from despair.
- Empathic Environment: as Chloe's health deteriorates, so does Colin's emotional state; accordingly, their house shrinks in size and gets covered in cobweb.
- Idle Rich: Colin starts the movie this way.
- Ill Girl: Chloe.
- Victorian Novel Disease: a water lily in the lung, which makes her beautifully pale and languid.
- No Celebrities Were Harmed: Jean-Sol Partre is quite obviously a stand-in for Jean-Paul Sartre, who was Boris Vian's friend in real life.
- Take That!: to Sartre.
- Reality Is Out to Lunch: let's just say the laws of physics are bent repeatedly.
- Spared by the Adaptation: the mouse survives the 2013 movie.