In 1961, 25-year-old mom of two Lucy Ann Johnson mysteriously disappeared from her family home in Canada. Her daughter, Linda, was only seven years old when her parent vanished, and, as a grown up, scarcely had any memories of her. Nevertheless, she spent decades wondering what happened to her mom. More than half a century later, the abandoned daughter was determined to get some answers. In 2013, the cold case investigation was reignited and Linda discovered the truth.