While You Were Sleeping (2017)

S1E14 Catch Me if You Can

Following the arson incident, Criminal Division Three finds itself inundated with cases. Woo Joo and Hee Min dive into the investigation of the arson, while Ji Gwang and Jae Chan take a second look at the IV drip serial murder case. Hong Joo joins in on the investigation as well. Meanwhile, Yu Beom gets an enigmatic text from the actual murderer.