In 2004, Gregory Lemarchal won the Star Academy live in front of more than ten million people who communicate with him on his an incurable disease, cystic fibrosis.
In 2022, 30-year-old Eliott writes to his first email address to check if it is still available. He is shocked when a reply comes from himself in 2001... and decides to change his past in order to improve the future. At what cost?