In "Hyde, Jekyll, and I" Sung Joon's identity was revealed. With this, it'll be Interesting to see how the destiny of Hyun Bin and Han Ji Min will change.

On the 8th episode of SBS Wednesday/Thursday "Hyde, Jekyll, and I" (script Kim Ji Woon, director Jo Young Gwang) broadcast on Feb. 12th, it was revealed that Lee Soo Hyun, who was caught as a culprit, was not the actual Lee Soo Hyun. With this, the police station went into a frenzy.

Nonetheless, Lee Soo Hyun was able to go through a lie detector test as well. Therefore, the police investigation fell into a black hole because of Lee Soo Hyun. At this, Doctor Yoon Tae Soo (played by Sung Joon) said, "That person is hypnotized. A person who knows Koo Suh Jin's past and can hypnotize him. Doctor Kang is the only one." With this, he made it seem like everything was planned by Kang Hee Ae (played by Shin Eun Jung).

Yoon Tae Joo who came back home heard about this. Picking up the call of Jang Hana (played by Han Ji Min) who had asked for advice, he locked the door when he got home. In that place was none other than Kang Hee Ae.