There is no warning for Nora that her sister Rachel is about to be taken away from her.
It's just one more train ride to Rachel's town after work, and Nora has a lot on her mind for the journey. The two young women have always had that typical sisterly relationship - that unique half love, half hate, but always with that family tie that can bind two adult women as close as they possibly can be. So it is Nora that discovers Rachel, slain in her own home. Unable to move on with her life until the investigation into her sister's killing is complete, Nora takes leave from her job to shadow the local detectives and examines her own past with Rachel for clues. Nora knows that is ultimately her duty to carry the baton for Rachel and push through to the truth.