SYNOPSIS:

Rushing to leave her office building late at night, an anxious professional named Ella becomes trapped inside a stalled elevator cabin during a sudden power failure.She quickly realizes she is not alone. Standing rigid in the opposite corner is a neatly dressed stranger who mimics her exact movements and words—but on a mechanical, terrifying two-second delay.As the stranger begins lunging forward during algorithmic "lag spikes," Ella discovers a horrific rule of survival: she must remain absolutely, deathly still. The tension climbs to a nerve-shredding climax where a single, instinctual human blink changes everything, culminating in a chilling identity-theft twist.