A Demonic entity breaches a Medium at a young couple's housewarming party, wreaking havoc and terrifying the attendees. After the party, the entity begins stalking the guests. They attempt to fight back, but don't know who they can trust as the Demon can shape-shift and appear to be anyone. The stakes grow higher when the Demon begins killing them, one by one.
The Devil's Own is a 1997 American action thriller film directed by Alan J. Pakula, starring Harrison Ford and Brad Pitt, with Rubén Blades, Natascha McElhone, Julia Stiles, Margaret Colin, Treat Williams, and George Hearn in supporting roles. The plot revolves around a member of the Provisional Irish Republican Army (Pitt) who comes to the United States to obtain black market anti-aircraft missiles, but his plan is complicated by an Irish-American policeman (Ford), whom the IRA member has come to regard as family.