The Witness tells the story about the girl "Angel Williams" who is having nightmares about a boy who is commiting suicide. One day Angel is invited by her family to a dinner in their house because Angel is quite busy so she missed their family reunions. A unknown man appears on the house and killed her guards,maids,sister,mother and father. Leaving her as "The Witness".When she manage to escape while the killer is finding her,she was shot into her back. She survived and she must investigate the happenings several years ago.