The Dead Girl in 2A by Carter Wilson

Jake Buchannan finds himself seated next to Clara Stowe on a flight to Denver. Each swears they know each other yet other than a couple of similarities, they are unable to place how and where. They actually have much more in common than being orphans and having memory problems which they will discover after setting foot in Denver. Someone has brought them together to jog their memory about an event that happened years ago and that someone doesn't care what they have to do to get answers. It is a tightly twisted psychological thriller and one that you can't put down til the end. For fans of government conspiracies and the show "Homecoming", this will pull you in every direction possible.