Knife

After a knife-wielding stranger crashes Emily Melville’s wedding, massacring many close to her, her estranged father Harry warns that the knife itself is cursed, hell-bent on wiping out her entire lineage. The knife possesses whomever holds it, urging them to kill all in their path until every Melville is dead. Having barely escaped with their lives, Emily and Harry must destroy the knife before their entire family is wiped out.