Well, you really can't trust anyone. Just a lesson I learned reading Fiona Barton's debut novel The Widow which had four very different narrators, and I'm over here like, who do I trust?
Jean Taylor's husband was accused of abducting a child but never convicted. Jean stood by her man despite a lot of negative press. Now that he's dead, Jean must decide if she wants to tell her story. Told mostly through the eyes of Jean, but also by the police officer in charge, the mother of the victim, and the journalist who showed up at her doorstep to get the untold story, Barton creates a very interesting and eerie story that should not be compared to recently popular thrillers.
Did you ever watch the TV show Motive? It shows the audience who committed the murder right at the beginning, and then through the entire episode you piece together the motive, and it's always surprising. That's a good example of the format of this novel.