Japan, 1944. Trained for intelligence work, Hiroo Onoda, 22 years old, discovers a philosophy contrary to the official line: no suicide; stay alive whatever happens; the mission is more important than anything else. Sent to Lubang, a small island in the Philippines where the Americans are about to land, this role will be to wage a guerrilla war until the return of the Japanese troops. The Empire will surrender soon after; Onoda, 10,000 days later.

Sibyl, a jaded psychotherapist, returns to her first passion: writing. But her newest patient Margot, a troubled up-and-coming actress, proves to be a source of inspiration that is far too tempting. Fascinated almost to the point of obsession, Sibyl becomes more and more involved in Margot’s tumultuous life, reviving volatile memories that bring her face to face with her past.

A woman is suspected of her husband's murder, and their blind son faces a moral dilemma as the sole witness.