Ghost Witness follows the sole witness to a murder, a young woman haunted by what she’s seen; only she’s seen it in her dreams and has written it off as just an unwelcome recurring nightmare. Everything changes when she meets the mysterious and irresistibly attractive new tenant of the house where her nightmare takes place, and she begins to suspect that his adopted four-year-old niece’s disturbing claims of seeing ghosts in her room are related. Meanwhile, those behind the murder have picked up on the fact that somebody knows something they shouldn’t, and are ready to do anything to cover their tracks.