KCSI: Smoking Gun

"What kind of parent would kill their child?" A young daughter dies at the pool.

A twin brother is murdered. The parents' testimony doesn't match! What evidence will identify the murderer?

"Do you have evidence against me?" The Geumho River murder case and the one thing the culprit couldn't hide!

Yoo Byung Eun's corpse shocked the nation in 2014! It rotted down to bones in 15 days. What really happened?

What is the decisive clue in the grisly murder of the so-called "Cheongdam-dong stock millionaire's" parents?

Murder cases involving herbicide in Pocheon. "The corpse in the grave talks."

"I remember him, the culprit from 14 years ago." The games arcade murder in Oncheon-dong, Busan.

"DNA knows the murderer." The murder at a food stall in Gyeongbuk.

A middle-aged man who doesn't smoke has died due to a case of "nicotine poisoning."

"I'll take your most prized possession." The truth will be revealed for the murder of Jeju Middle Schooler.

"Jump!" The murder that occurred in Gapyeong Valley will fully be unfolded in this episode.

"A devil with a face of an angel?" The truth about Ms. Um's cruel mystery is revealed in this episode.

"I saw the devils." Who is the real culprit of a murder scene that reminds of a torture scene?

"I hit her. But I didn't kill her." The truth of the murder of a five-year-old missing girl is tracked down.

"I'll crush you." We look closely into the smoking gun of the murder case of Ko Yu Jung's husband.

"The end of a masked murderer." The truth about the dismemberment of a single woman is revealed.

"It wasn't the baby, but it was a part of the baby." The shocking truth of the murder of infants is revealed.

"I couldn't contain my urge." The ins and outs of the serial killing by Jeong Nam Gyu will be examined.

"My daddy is a good person." We dig into the ugly truth about Molar Daddy Lee Young Hak.

"A secret request of a pianist." The truth about the contract killing at a rest stop in Yongin Service Area.

With cake and cyanide in his hands, a father's family burned to ashes. But each died from various causes?

"Do you want to hop in?" The crimes of Kang Ho Sun, the serial killer, will be examined in this episode.

"Why is she the only one happy?" The murder in Geoyeodong will be reenacted by Lee Yu Ri in this episode.

"The secret of the red rubber container." What was hidden in the red container when two men were killed?

"I'm her grandma." Mysteries surrounding the death of a 3-year-old in Gumi will be examined.

"Why do you make me cruel?" The truth about the murder of a family in Yongin will unfold in this episode.

"I put my instinct first." The shocking truth about a man who killed his friend's fiancee will be revealed.

"I'll hunt you down if you run." The truth about the murder of a family and Lee Seok Jun will be revealed.

"Nine nightmarish hours." The day of the murder of a mother in Chungju will be broken down in this episode.

"The Suspicious Tenant." Uncovering the truth behind the Hwaseong corpseless murder case.