How far would you go to keep a secret It has been ten years since Mack went missing. A Columbia University student he walked out of his room and has not been seen since. Every year he calls his mother on her birthday on his birthday and on Mothers Day. He assures her he is fine then hangs up. Even the death of his father on 9/11 does not bring him home. Macks sister Caroline has now endured two family tragedies. Determined to solve the mystery surrounding her brothers disappearance she sets out to discover the truth. But with it comes a secret that someone will do anything to protect leading her to a deadly confrontation with an unexpected enemy.