As night fell, people with different lives and experiences filed in and sat in the cabin of Pacific Airlines Flight 7500 to Tokyo. Joy, anger, sorrow and joy were revealed inadvertently. Some of them were in a dilemma about having an affair, some were experiencing a marriage change, some were shameless and longed for an affair, some were worried about the possible unexpected pregnancy, and some were immersed in the romance of their honeymoon without caring about others. After a while, the plane took off, but soon encountered a strong air current. As a result, a well-dressed man sitting upright had a heart attack. Although he was rescued by everyone, he unfortunately died on the plane. After a brief negotiation with the ground, the crew vacated the upper cabin and temporarily placed the body there. It seems that this is the beginning. In the next eight hours, a terrifying and weird atmosphere spread in the plane, and passengers and crew members with their own concerns experienced the most significant changes in their lives...