Before, Nicolas had a family, children, he was a young doctor. It was 10 years ago. Today Nicolas has become Lea, another woman. Transsexual. Unrecognizable. Lea lives in Geneva where she is a pharmaceutical products representative. Sent on an assignment in Paris, she can't resist the call of the heart, she wants to see her children again. Not daring to introduce herself directly, Lea pretends to be a musical journalist with her daughter, Emma, a young pianist. The plan works so well that Lea is introduced to the family recomposed. Nobody recognizes Nicolas behind Lea who plays the game, painfully. Soon, Lea, unable to bear hiding her true identity, reveals herself to the others. Then, it's the shock and rejection. Traumatized, Lucas, her 10 year-old son, shut himself in silence and incomprehension. Despite all these ordeals, Lea wants to continue to see her children whom she loves. Nobody will prevent her from this. In the face of her determination, she's brought to justice.