Seemingly ordinary couple Susan and Christopher Edwards who find themselves the focus of a murder investigation.

As the investigation into the Mansfield double murder continues, Susan and Chris's past is revealed and secrets emerge.

Christopher opens up about his past as the couple's relationship with Susan's parents comes under the spotlight. Lancing and Wilkie have a breakthrough.

Truth and fantasy clash as Susan and Christopher Edwards face trial. Meeting for the first time since their arrest, old doubts and new regrets test their love.