"Rien ne t'efface" series finale clarifies identical DNA plot device

TF1's series "Rien ne t'efface" concluded, revealing that two unrelated children sharing identical DNA was a plot device, not a biological reality. The series finale explained that while two unrelated individuals can theoretically share the same DNA, the probability is astronomically low, approximately 1 in 46 billion. This plot point in the thriller, adapted from Michel Bussi's novel, explored the rare possibility of identical genetic makeup between strangers, emphasizing its extreme improbability.