Dateline: Secrets Uncovered (2017)

S07E20 The Girl With the Red Shoes

Title: The Girl With the Red Shoes Plot: Fifteen-year-old Annie Kasprzak, who has been given a new lease on life after her adoption by her case worker, suddenly goes missing. In the wake of her disappearance, her adoptive parents discover a note in her bedroom that uncovers a concealed truth about Annie that she had kept hidden from them.