"After their parents’ divorce, teenage Vira and her younger brother Dino move in with their mother. At first, things seem normal—but soon, unsettling changes begin to appear. Their once-loving mother becomes unrecognizable: cold, violent, and consumed by strange rituals and supernatural markings. As the mother’s behavior spirals into madness—laughing hysterically, whispering eerie threats, and attacking her children—the siblings are forced to confront a terrifying truth: the woman living with them may no longer be their real mother. Based on a viral true story thread, Dia Bukan Ibu is a brutal and emotionally charged psychological horror that explores the darkest corners of family, identity, and the question—what happens when the person you love most becomes a stranger?"