Struggling real-life couples date each other's partners to decide who to leave with: the same person they walked in with or someone new.

Amid a coup, a North Korean agent escapes south with the country's injured leader in an attempt to keep him alive and prevent a Korean war.

A high school teacher whose wife is about to give birth finds himself tangled in temptation and obsession when a student falls for him.

No.1 subscribed live streamer, Woo Sang, specializes in criminal profiling and covering crime-related mystery cases. One day, Woo Sang streams about an unsolved serial murder case and ends up unveiling the truth to some dark secrets through his channel.

A desperate 35 year-old Young-sil is more than ready for full time job. And finally she gets a call from National security department as an intern. But her joy lasts no long, soon asked to leave. Accidently she discovers a secret about her boss and she suggest a deal of full time job to help him; secret spy.

This new reality series offers a candid look at the lives of couples who for various reasons have chosen to live together rather than get married.

Hyun-ah is listed on top ten of TV audition program with talented voice and attractive appearance. The reason why she is in this show is to be shown to her mom, Jang-mi, who has been separated for over 10years. Jang-mi used to be a potential singer long time ago but had to give up her dream due to her responsibility she had to take at that time. They had lived together happily even in poverty until something happened bringing their parting.

Woo-gon, a passionate manager who lost everything due to stock advertisements and a specialist gets together to find out the truth behind the rumors that have shaken up the country. From precious information to distribution, this crime chasing movie surrounds the invisible truth.