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

Woo Tak and Jae Chan share their theory behind why they can see each other's future in their dreams. Hong Joo goes to Criminal Division Three to follow a prosecutor for three days for an article, and Jae Chan 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. Woo Joo and Hee Min look into the arson case, and Ji Gwang and Jae Chan reinvestigate the IV drip serial murder case. Hong Joo also begins to look into the case. Meanwhile, Yu Beom receives a mysterious text message from the real killer.

After the arson, Criminal Division Three is swamped with work. Woo Joo and Hee Min look into the arson case, and Ji Gwang and Jae Chan reinvestigate the IV drip serial murder case. Hong Joo also begins to look into the case. Meanwhile, Yu Beom receives a mysterious text message from the real killer.