In the ultimate test of marriage, an agent-turned-househusband gets tangled in a perilous mission with his detective wife, who's clueless about his past.

A working class family wins a free vacation to Hawaii. But when their plane takes flight, it gets hijacked by terrorists. To save her family and the other passengers, the wife must reveal her secret past and fight back.

Ha Yoon-ju becomes the newest member of a unit within the Korean Police Forces Special Crime Department that specializes in surveillance activities on high-profile criminals. She teams up with Hwang Sang-jun, the veteran leader of the unit, and tries to track down James who is the cold-hearted leader of an armed criminal organization.

Seoul, 2008. On a bus heading to their hometown, fate brings Eun-ho and Jeong-won together, sparking an unlikely friendship. While battling a bustling and weary city life, they find themselves sharing lofty dreams and a love that comes to feel extraordinary. But, eventually, the harsh realities of life lead them to part ways. Over a decade after the separation, the two unexpectedly reunite on a flight back to Korea, where they reflect on their lost time.

A university professor teaches a documentary filmmaking class. One day, he receives disturbing news: several workers featured in a documentary he made years ago have been unjustly dismissed—simply for appearing in the film.

The awkward, distant, and wounded three sisters gather at their hometown for their father's birthday. However, on the day of the party, there is a big mess because of their little brother Jin-seob's abnormal behavior, and the past of the three sisters slowly reveals.

When a series of murders occur in Kanghwa Island, Detective K and his partner are once again called upon to solve the case. Along the way, he teams up with a beautiful woman with amnesia and together they discover Vampire bite marks on all the bodies. As they investigate further, they realize that the woman is somehow closely connected to the deaths.