خلاصه داستان : یک به یک: پس از کشته شدن یک دانش آموز دبیرستانی ، هفت مظنون توسط اعضای یک سازمان تروریستی شکار می شوند.

On May 9th, a female high school student was brutally murdered. There are 7 suspects and 7 shadows that terrorize them. Who are they and which one of them is you?

خلاصه داستان : در پی یک فاجعه بی رحمانه در جزیره ججو، یک اوباش ستمدیده با زنی ارتباط برقرار می کند که شیاطین خود را دارد...

An assassin named Tae-goo is offered a chance to switch sides with his rival Bukseong gang, headed by Chairman Doh. Tae-goo rejects the offer that results in the murder of his sister and niece. In revenge, Tae-goo brutally kills Chairman Doh and his men and flees to Jeju Island where he meets Jae-yeon, a terminally ill woman. Though, the henchman of the Bukseong gang, Executive Ma is mercilessly hunting Tae-goo to take revenge.

خلاصه داستان : کیم سئو جین مردی است که فقط برای رسیدن به موفقیت در زندگی خود رانده می شود. به لطف تلاش های او، او جوان ترین مدیر شرکت خود است. زندگی او با همسر زیبای ویولونیستش کانگ هیون-چای و یک دختر عالی است. زندگی شگفت انگیز او با ربوده شدن دختر جوانش متوقف می شود.

Kim Seo-Jin is a man who is driven only to achieve success in his life. Thanks to his efforts, he is the youngest executive at his company. His life is perfect, with his beautiful violinist wife Kang Hyun-Chae and a daughter. His wonderful life comes to a halt when his young daughter is kidnapped. He falls deep into despair. To change the past, when his daughter was kidnapped, he contacts Han Ae-Ri approximately one month in the past. Han Ae-Ri has busy days with her studies and working a part-time job to make enough money to pay for her sick mother's operation. One day, her mother suddenly goes missing. Han Ae-Ri falls into despair, when Kim Seo-Jin from the future contacts her.