To protect Heesung, Jiwon chooses to do what she shouldn't do as a police officer. Heesung is after Yeom Sangcheol's gang to catch the accomplice.

Hae-soo hears from Moojin that Jiwon has been known who Hae-soo really was and storms off to the station to turn himself in. Jae-sub asks Hae-soo about the intent of murder, the Yeom Sang-cheol's whereabouts, and the accomplice.

Jiwon and Hyunsoo are caught in a trap that Heesung has set. While the lights went out, Heesung takes the chance to escape the house and runs off.

As the detectives watched Hyunsoo pretends to threaten Jiwon through the surveillance camera, they run to Hyunsoo's workshop but Hyunsoo and Jiwon disappear. Meanwhile, Woo-chul spills out the key clue to Man-woo, and Heesung plans a new scheme.

Moojin runs excitedly to Hyunsoo's house to see Hae-soo but he sees her on the floor unconscious. Heesung finally reveals himself to Hyunsoo.

Two shots of gun are fired and, soon after, Hyunsoo collapses and is sent to the emergency room. 4 months later, Hyunsoo suffers from the aftereffect from the gunshot and tries to reconnect with Jiwon.