1947. On a beach, Madeleine, a waitress in a hotel restaurant, mother of a little boy, meets François, a rich and cultivated student. The force of attraction that pushes them towards each other is commensurate with the secrecy that each carries. If we know what Madeleine wants to leave behind by following this young man, we discover over time, what François is desperately trying to flee by mixing Madeleine's fate with his.
Arco, 12 years old, lives in a far future. During his first flight in his rainbow suit, he loses control and falls in the past. Iris, a little girl his age from 2075, saw him fall. She rescues him and tries by all means to send him back to his era.