Grace McKenna has an unfaithful husband, a difficult family and a drinking problem. Then one fateful day she witnesses a woman being brutally murdered. She decides, against all advice, to testify to what she saw. Only her testimony can put the murderer behind bars. But despite her evidence, the killer is let off. Now that he's free, he wants to silence the only witness to his crime. Grace's life is on the line. Desperate to stay alive she prepares to come face to face with her pursuer, and her own fears.