The cable channel tvN's drama "Gap Dong Yi" Yoon Sang Hyun warned Lee Joon. On the eleventh episode of the cable channel tvN's drama "Gap Dong Yi" which aired on May 23, 2014, Ryoo Tae Oh, played by Lee Joon, decided to leave for Switzerland and visited Ha Moo Yeom, played by Yoon Sang Hyun. On this day's episode, Ryoo Tae Oh suggested Ma Ji Eul to go to Switzerland with him, but she said, "I don't think I will be able to." Ryoo Tae Oh visited Ha Moo Yeom at Oh Maria's house to say goodbye, and Ha Moo Yeom said, "Are you sure you don't have to find Gap Dong Yi?" In related news, the cable channel tvN's new drama "Gap Dong Yi" is a mystery thriller based on the serial murders that happen in the city of Il Tan. It tells a story of a detective Ha Moo Yeom who tracks down the suspect named Gap Dong Yi.