Stupid question, but what us the plot of Silent Hill???

Rose goes searching Silent 丘, ヒル for Sharon and along the way learns the history of the 'tainted town'. Thats the basic plot of the film. Its pretty much the same as the very 1st game just different characters and names. Hope that helps!
P.S. I dont think Sharon and Rose died at the end of the film. There wouldn't be a 2nd movie with both of them if they had.

Rose (Radha Mitchell) and her husband, Christopher Da Silva (Sean Bean), are concerned about their adopted daughter, Sharon (Jodelle Ferland), who has been experiencing nightmares and sleepwalking while screaming the name of a town, "Silent Hill". Desperate for answers, Rose takes Sharon to Silent Hill. As they approach the town, she is pursued によって police officer Cybil Bennett (Laurie Holden). A child appears in the road, causing Rose to swerve and crash the car, knocking herself unconscious. When she awakens, Sharon is missing, and fog and falling ash blanket the town.

Rose wanders the empty streets of Silent 丘, ヒル looking for her daughter and instead encounters monsters which appear after sirens wail. Rose meets a woman named Dahlia Gillespie (Deborah Kara Unger) who speaks of terrible things done to her own daughter, Alessa, によって the townspeople and claims that Sharon is Alessa. Rose returns to her car and runs into Cybil, who arrests her. After they discover that the road leading out of town leads to a fracture, they pair up to 検索 the town.

Meanwhile, Christopher also simultaneously scours the town, shown to be abandoned and without mist and falling ash, with the assistance of Officer Thomas Gucci (Kim Coates), who grew up in the town. Christopher discovers documents 表示中 that the town was abandoned after a coal seam 火災, 火 thirty years ago, along with a photograph of Dahlia's daughter who bears a strong resemblance to Sharon; told to stop investigating under threat of incarceration, he heads home.

Rose and Cybil meet a woman named Anna (Tanya Allen), who leads them to the town church for refuge. As they approach the building, Anna is killed によって the monster Pyramid Head (Roberto Campanella). In the church, Rose and Cybil discover a cult, headed によって a woman named Christabella (Alice Krige). Christabella tells Rose about a demon, who knows where Sharon is. After convincing Christabella to help them find the demon, who is feared によって the townspeople, Rose and Cybil are taken to the town hospital. There, Christabella learns of the likeness between Sharon and Alessa, and condemns Rose and Cybil as witches. Cybil allows herself to be captured によって the townspeople in order for Rose to escape and descend into the hospital basement. There, Rose encounters the burned Alessa in a hospital ベッド and a being in the form of a girl who strongly resembles Sharon.

In a flashback, Rose discovers that Silent 丘, ヒル had a long history of witch burnings, stemming from the beliefs of the cult. Thirty years prior to Rose's arrival, Alessa was stigmatized for having been born out of wedlock によって an unknown father; her schoolmates bullied her, while the adults made no effort to

Rose and Sharon return home; though they are in the same room as Christopher, who has also returned home, they cannot see each other.

to be silint on a hill