Bel, eighteen, has lived her life in the aftermath of her mother's mysterious disappearance sixteen years ago, when Bel was a toddler--and the only witness to what actually happened. Wishing everyone would accept her mother is probably dead and move on, Bel is horrified when her family agrees to film a true-crime documentary, and then shocked to her core when her mother returns alive during the filming. The cameras still rolling, Bel must figure out if her mother is lying about what really happened, why, and if her mother is dangerous.