Siblings Elsa and Franck used to be close, but everything changed when Franck’s space mission went awry. Three years have passed since his mysterious disappearance, and 23-year-old Elsa is having trouble moving on with her life. One day, an unidentified life form makes contact, offering to bring her big brother back to Earth. But there's a price to pay...

When Nathan tries to motivate his friend Marceau to accompany him to the traditional July 14th ball, Marceau refuses. For the first time in years, Nathan and Marceau find themselves alone for the evening, their group of friends having left the country for the city. Marceau is finally persuaded, but they have to hurry, as the ball is a long way off...