早上七时,一班飞往美国的飞机将会起航,机上的乘客包括正打算结婚的Jung-woo和其女友Mi-ryung。可是,在他们离开韩国前的十二小时期间,却因为Ha-young的出现而令他们的关系有着微妙的变化。。Can you keep a secret? I haven't heard anyone for a long time until they arrived. They came for help and they broke the rules. I tried to warn them but it was too late. Little did they know. The party is over. Who will survive?。