Every parent's nightmare comes true in this real-life story about Valerie Wheeler and Peggy Rylatt, who were born on the same day in the same English hospital and sent home with the wrong family, a mix-up that wasn't discovered for decades. Filmmaker Françoise Romand re-creates the events of that bizarre day in 1936 and reveals the impact of the mistake on the two families in a series of candid and heart-wrenching interviews.