The Quiz Show Scandal

Around midnight, on the northern riverside road, a 4-car accident occurs, resulting in one fatality. Coming out of a Mercedes Benz, Do Yeop and Sang Kil start to argue with married couple Sang Do and Pal Nyeo. In another car, there is depression support group member Yeo Na and the president of the depression support group Jung Sang. There's also an awkward father and son, Ho Man and Ji Yong. They all have to go to the police station.
At the police station, there's a group of people, including delivery guy Cheol Joo and his friends. To identify the victim, the police went through her items and attempted to load her USB flash drive onto a computer. The USB flash drive is protected by a password. The people at the police station work together to try to gain access to the USB flash drive.
On the USB flash drive, the answer to the 30th question from a quiz show giving out $1.3 million dollars is discovered. All the people at the police station now know the final question to the quiz show. If they can correctly answer the other 29 questions, they will make a lot of money. On the day of the quiz show, all the people from the police station showed up at the studio.