Ma Dong-chan (played by Ji Chang-wook) is an accomplished producing director. His latest project is the Frozen Human Project and he takes part in it as well as one of the participants. Together with Go Mi-ran (played by Won Jin-ah), Ma Dong-chan enters the frozen capsule for 24 hours. Due to an unexpected accident, the capsule disappears along with Professor Hwang who is in charge of this research. 20 years went by, when Ma Dong-chan and Go Mi-ran wake up from the capsule, everyone else around them has aged by 20 years except them. Ma Dong-chan's girlfriend, Na Ha-yeong (played by Yoon Se-ah) has become the newsroom director. She firmly believes that the accident that took place 20 years ago is deliberate....

The show tells of the four different romantic stories of four charismatic men in their journeys through love and separation, success and frustration....

Secret Garden tells a love story roaming from game and reality. Featuring Hyun Bin and Ha Ji-Won, a soul-switching couple by accident, this romantic drama will be the highlight of this fall. Joo Won (played by Hyun Bin) is a picky store owner while Ra Im (played by Ha Ji Won) dreams to be an action director. The two argue a lot whenever they meet. One day, they switched their souls by accident. Thus, they started to undergo completely different lives where love budded gradually. ...