Stranger

Shi-mok visits Park Moo-seong, who called him to report prosecutors' corruption to find him dead.

After the suspect kills himself, Yeo-jin finds evidence that proves the suspect's innocence.

Shi-mok promises he will catch the criminal in two months on a TV show. He reinvestigates the case.

The last person Park Moo-seong met is the prosecutor, Young Eun-soo, making her father suspicious.

The girl Seo Dong-jae was looking for is found dead. Yeo-jin finds shocking truth about the case.

Dong-jae keeps the victim's phone, making him suspicious. Shi-mok and Yeo-jin track down the phone.

Dong-jae sets up Park Moo-seong's son as the criminal. Shi-mok and Yeo-jin investigate Dong-jae.

During the investigation, an anonymous person reports Park Moo-seong had sponsored the prosecutors.

Shi-mok leads the special investigation team for prosecutors' corruption. And Chang-joon resigns.

Ga-young wakes up from a coma, but she doesn't remember the culprit. Someone tries to hurt her.

The head of police tries to stop Ga-young, but Shi-mok and Yeo-jin arrest him at the scene.

On the night of the special investigation team's dinner, Eun-soo witnesses a shocking truth.

The team comes over to Shi-mok's house to catch the intruder. And Eun-soo realizes the murderer.

Another murder happens as soon as the special investigation team disbands.

The special investigation team arrests the suspect. But the culprit denies the third murder.

Shi-mok finds the actual criminal behind everything. And he reveals the secrets the criminal left.