On a long-haul flight from Los Angeles to Tokyo, a group of passengers prepares for what seems like a routine trip. However, what begins as a smooth takeoff soon turns into a nightmare. During the flight, a mysterious and terrifying event occurs, unleashing unexpected chaos in the cabin. One passenger suddenly exhibits strange and disturbing behavior, causing the others to feel a palpable fear, intensifying the tension in the air.
As the crew struggles to maintain control of the situation, several characters must confront their own fears and secrets. A young couple, whose love appears to be on the brink of collapse, is forced to come together amid the crisis; a former soldier grappling with past traumas; and an enigmatic stranger who harbors more than one secret. All of this unfolds while the plane faces an uncertain and terrifying fate.
With each passing minute, the atmosphere becomes increasingly oppressive. As the mystery deepens, the line between reality and the supernatural blurs. The struggle for survival turns into a mental game, leading everyone to question what is real and what is not. The polar opposite of a pleasurable journey, what should have been a simple trip transforms into an experience that will change their lives forever.