Seo-jin pretended he was Robin based on the plot he set up along with Jang Ha-na (Han Ji-min). The plot was to uncover the truth about Tae-joo.
Robin left a video message to Seo-jin. Robin said in the video clip that Tae-joo was Lee Soo-hyeon. Robin said, "Lee Soo-hyeon is Dr. Yoon Tae-joo . However, I don't have evidences. We have to make evidences" and "He tried to provoke me through hypnosis. Only if we could catch the scene".
Seo-jin called Tae-joo after all and said, "I recovered all the memories when I was kidnapped". And it made Tae-joo delighted and he invited Seo-jin to his house while he was talking to himself, "You only would need to confirm the truth on that day".
Seo-jin used his trait he cannot be hypnotized easily and he pretended he was Robin, which was part of the plot that Seo-jin and Ha-na set up. Therefore, Seo-jin as Robin met Tae-joo and police was on standby outside until he would catch the evidences.
[Spoiler] 'Kill Me, Heal Me' Secrete to be revealed: How Shin Se-gi was formed to Cha Do-hyeon
On the 17th episode of MBC Wednesday & Thursday drama, 'Kill Me, Heal Me', a huge secret about,...More
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