Plot: As Maggie and her team dig deeper into Callum Reid’s disappearance, they re-interview the Reids and their neighbours, forcing them to reopen old wounds and revisit painful memories, as they find themselves once again under suspicion. When new evidence eliminates the original prime suspect, the holes and inconsistencies in the first investigation begin to emerge and Maggie becomes convinced that Nina Huber, the Reids’ former au-pair, could hold the key