After fifteen years of absence, Coco returns to the family clan. Aurélie, five years old, loves this unknown man in advance. Christelle, his older sister, watches his arrival with suspicion, and predicts the chain of events that this intrusion will cause. Adults do not want to or cannot see anything. Neither Francky, nor Alex, Coco's two brothers, nor their mother, the last guarantor of the family unit. When tragedy befalls them, they struggle like trapped insects. The explosion of the clan is inevitable. Who knows deep down if it isn't necessary? For out of the deepest darkness can only light be born.