Rose and her husband Christopher Da Silva are concerned about their adopted daughter Sharon who has been experiencing nightmares and has begun sleepwalking. Their only clue to the girl's condition is her repetition of the name "Silent Hill." Desperate for answers, Rose takes Sharon to the town of Silent Hill, West Virginia.
On her way there, she attracts the suspicions of police officer Cybil Bennett, who gives chase on her motorbike. It is in the midst of this chase that Rose and Sharon arrive at Silent Hill: as they enter, Rose crashes the car in an attempt to avoid a mysterious child in the middle of the road, knocking herself unconscious. When she awakens, Sharon is nowhere to be seen.
Rose searches the empty streets of the town for her missing child.