Chaos ensues after global warming transforms a working-class Montreal neighborhood into a world Mecca for truffles.

In the near future, as humanity prepares to set foot on Mars, Jacob Obus, an elderly musician, takes pride in slowing down time by playing instruments inspired by women's bodies, designed by his friend Arthur. A love triangle develops when Jacob and Arthur both fall in love with Avril, a young photographer. Enter Eugène Spaak, Arthur's father, an inventor and cosmologist who unveils a new theory about man's desire to reach Mars and helps Jacob find the true meaning of life and love.