Winchester goes inside the most haunted mansion in history.

Inspired by true events, the film centers on an isolated stretch of land 50 miles outside of San Francisco, on which sits the most haunted house in the world. Built by Sarah Winchester (Helen Mirren) heiress to the Winchester rifle fortune, it is a house that knows no end.

Constructed in an incessant 24-hour a day, seven day a week mania for decades, it stands seven stories tall and contains hundreds of rooms. To the outsider it looks like a monstrous monument to a disturbed woman’s madness. But Sarah is not building for herself, for her niece (Sarah Snook) or for the brilliant Doctor Eric Price (Jason Clarke) whom she has summoned to the house. She is building a prison, an asylum for hundreds of vengeful ghosts killed by the famous rifle, and the most terrifying among them have a score to settle with the Winchesters.

Watch the first trailer!

Winchester opens February 2.