From showrunner Susannah Grant and inspired by real events, the eight-episode mini-series Unbelievable is a story of unspeakable trauma, and the strength and resilience that you can discover within yourself, as a result. When 18-year-old Marie Adler (Kaitlyn Dever, giving a reserved but remarkable performance) reports that she’s been sexually assaulted by an intruder in her home in 2008, everyone from her former foster parents to her friends to the investigating detectives doubt the truth of her story. Meanwhile, in 2011 and hundreds of miles away, Detectives Grace Rasmussen (Toni Collette) and Karen Duvall (Merritt …