The second episode of SBS Monday Tuesday drama "One Warm Word," aired on December 3, 2013, announced the start of a thriller love line of Han Hye Jin and Ji Jin Hee.

On the second episode of "One Warm Word" Na Eun Jin, played by Han Hye Jin, and You Jae Hak, played by Ji Jin Hee, felt afraid of the people who are chasing after them. On this day's episode, Na Eun Jin received another letter, criticizing Na Eun Jin of her extramarital affair. Na Eun Jin, after looking around her surroundings, had to shutter out of fear.

This was not the end. While shopping for groceries at a local grocery store, she felt as if somebody was looking at her. Na Eun Jin this time again tried to hide herself from the person, trying to save herself. Finally, Na Eun Jin visited You Jae Hak and asked, "Are you getting threatened as well? I received a threatening letter in the mail. I also got threatened by a stranger once. They are trying to harm my family in addition to myself."

Unfortunately, after this meeting, somebody started stalking You Jae Hak as well.

Meanwhile, "One Warm Word" is a thriller drama of two married couples who are engaged in extramarital affairs.