To the outside world looking in, Jack's not well. He's been in and out of secure units all of his young life, had every drug they can throw at him, every treatment they can think of... but nothing can make the dead go away, they always find a way through. The Messenger is the story of frustration, guilt, love and betrayal.　　Unwillingly becoming embroiled in the unfinished business of Mark (a journalist brutally murdered in a local park and his television presenter wife, Sarah, to whom he's desperate to say one last goodbye), Jack finds himself getting closer to Sarah, obsessed with passing on Mark's message.　　Discovering hidden secrets and lies finally pushes the fragile Jack over the edge but there is hope when his estranged sister, Emma, gets in touch. Jack starts to remember the past they shared together and as the memories come flooding back, he starts to confront the truth about the death of his father.