Seeking sanctuary from fresh grief, a widow retreats to her late husband’s family, only to step into a horrific nightmare. One by one, her in-laws succumb to a ghastly possession, twisting into ravenous deadites. Trapped in a demonic crucible, she faces a chilling reality: her marital vows didn't perish with her husband's final breath. "Until death do us part" was never a promise ended by the grave—it was an eternal covenant.