Inspector Mike Chuckwood has a serial killer to catch and his hunt isn't going so well.
Marsha Frisk's twin sister Emma is dead, the cops say it's suicide but Marsha knows her sister Emma would never have killed herself. Determined to uncover the truth she launches her own crusade.
Armed with love and disbelief Marsha's hunt for the truth and Chuckwood's search for answers lead to the same person, a young man called Sam Watson who as well as having the highest level of intelligence imaginable, has a terrible secret.
Chuckwood and Marsha, for their own reasons, must uncover Sam's secret and when they do each of them will be faced with the hardest decisions of their lives.