Wootak and Jaechan share their theory behind why they can see each other's future in their dreams. Hongjoo goes to Criminal Division Three to follow a prosecutor for three days for an article, and Jaechan is worried that he will embarrass himself in front of her. Meanwhile, a cellphone thief provides evidence for a past case.

Wootak and Jaechan share their theory behind why they can see each other's future in their dreams. Hongjoo goes to Criminal Division Three to follow a prosecutor for three days for an article, and Jaechan is worried that he will embarrass himself in front of her. Meanwhile, a cellphone thief provides evidence for a past case.

After the arson, Criminal Division Three is swamped with work. Son Woojoo and Shin Heemin look into the arson case, and Lee Jigwang and Jaechan reinvestigate the IV drip serial murder case. Hongjoo also begins to look into the case. Meanwhile, Yoobeom receives a mysterious text message from the real killer.

After the arson, Criminal Division Three is swamped with work. Son Woojoo and Shin Heemin look into the arson case, and Lee Jigwang and Jaechan reinvestigate the IV drip serial murder case. Hongjoo also begins to look into the case. Meanwhile, Yoobeom receives a mysterious text message from the real killer.