A woman takes time in private on a tiny island in Helsinki to contemplate a loss that has caused sudden changes in her life. This tragedy has challenged her to see the world in a different light. A light that is driven by a force of nature.

In 2016, French writer and photographer Carole Achache took her own life. After Carole's death, her daughter Mona Achache, a film director, discovers thousands of photos, letters and recordings that Carole left behind, but these buried secrets make her disappearance even more of an enigma. Through the power of filmmaking and the beauty of incarnation with the help of actress Marion Cotillard, the director brings her mother back to life to retrace her journey and find out who she really was.

Sierra is a spy who loves cheesecake. She has a flavor to suit her every mood. Today her mood is bad. Her informant Austin has arrived. She wants answers. Will he give them freely or will she have to threaten him to get what she wants?

Françoise Hardy is one of the rare artists who keeps an intact aura and arouses such a fascination throughout her career with all generations. Her androgynous figure, her exceptional photogeny and her hieratic allure have inspired photographers and fashion designers alike and seduced the greatest rock stars such as David Bowie and Mick Jagger. This documentary film, rich in archives, skillfully mixes songs and confidences. It takes us on a fascinating journey through time, from the yéyé period to today, and into the artist's feelings.