A mother fights to protect her son and his oxygen cylinder as they get stuck in a tunnel with other passengers and the oxygen level depleting
Acting
Nayanthara's panic is so real you'll check your own lungs.
Direction
Viknesh squeezes every drop of dread from one location.
Director
GS Viknesh
Trivia, insights & behind the scenes
O2 joins a wave of South Indian survival thrillers using single locations to critique social hierarchies—think Malayalam's Helen but with more screaming.
That scene where passengers vote on who gets oxygen? Direct nod to the classic Lifeboat dilemma, except everyone's too busy dying to be witty.
IN
