新任檢察官殷率在偵辦一樁孕婦死亡案件時，結識態度差到人盡皆知的白範。

殷率必須掌握證據，才能證明女子是被丈夫所殺。她意識到解開所有答案的關鍵，也許就在自己的辦公室裡。

三姊妹為了是否要開棺檢驗弟弟的遺體，而和弟媳大吵。白範的驗屍結果顯示這名男子慘遭謀殺。

殷率的父母斷絕金援。另一方面，研究院深入檢驗後，發現開棺相驗的遺體，其實屬於另一位神秘的男子。

所有證據都顯示車秀浩確實在一名女子的公寓裡殺死對方。殷率想證明事實並非如此，於是著手尋求解答。

殷率與團隊成員追緝罪犯。秀浩與案件真正的關聯浮出水面。

殷率和白範接觸一具疑似感染致命病毒的男性遺體後，在驗屍室進行隔離。

研究院承接一具身分不明，因為墜落而重傷死亡的青少年遺體。馬道南得知令人心碎的消息。

新曝光的監視器畫面顯示兒子死亡的情況，道南卻不願接受事實。毒理報告進一步透露事發細節。

康賢以涉嫌殺人的名義逮捕白範，並指控他該為十年前的一件殺人案負起責任。

白範決心自行驗屍，他為此中斷火化程序，取回一具燒到一半的遺體。康賢終於得知有關哥哥的真相。

死者的孩子們堅稱父親在睡夢中安詳離世，但他們詭異的行為卻啟人疑竇。

調查老人之死又回到了原點，殷率與團隊查出這群兄弟姊妹有更多不為人知的秘密。

一名新成員加入殷率的團隊。一位惡名昭彰的連環殺手在幾十年過後再度犯案，促使檢警雙方聯手偵辦。

伍城殺人犯唯一生還的受害者死亡。白範順著驗屍得來的線索，查出凶器為何。

過往的驚人真相曝光後，白範離開工作崗位休假。吳萬尚旗下法律團隊的一名律師身亡，引發眾人警戒。

Ma Do Nam becomes enraged when he hears that his late son, Sung Jae, has probably committed suicide. He shouts at Beom, telling him that his son would never do something like that. However, the autopsy result shows that Sung Jae has committed suicide approximately four hours after eating, which is around the time he was alone.

Sol remembers seeing many different pill containers on Sung Jae’s desk. After confirming that Sung Jae was alone during the time of the accident, she visits Sung Jae’s roommate, Park Jun Ha, and apologizes for suspecting him. Feeling understood, Jun Ha tells her exactly what happened on that day.

Right when Beom is about to perform an autopsy on Seo Jeong Min, Kang Hyun’s colleague, Kang Hyun suddenly stops him from doing so. He tells Beom that he is not allowed to perform the autopsy in case of destruction of ev-idence. When Sol asks why he is being so cold toward Beom, Hyun tells her that the last person Jeong Min talked to on the phone prior to getting killed was Beom.

As all the evidence of the murder points to Beom, he is taken into custody as a suspect. Furthermore, he decides not to explain himself which does not do well for him. Those who have been working close to him cannot and does not believe that Beom is the true suspect of this crime. However, Hyun is more than just determined to indict Beom once and for all.

Eun Sol arrives too late and finds the body already in the process of cremation. However, Beom tells Hyun that if he can obtain even one piece of the bone, the autopsy can be performed. Hyun, who’s hesitant at first, orders the body to be brought to the NFS. Dong Sik doesn’t understand why Beom is so determined to prove that it’s a homicide since that will only make Beom himself suspicious.

It turns out that the real murderer is actually a woman. Hyun confesses that he omitted some parts from the late Seo Jeong Min’s call history and that he knows who the murderer is. The team makes an urgent, public arrest for Lee Hye Seong, and during the interrogation, she explains that she had been threatened by Jeong Min.

Yeom Sang Goo, a 76-year-old man, is found dead in his sleep. Although shocked by their father’s sudden passing, his three children prepare for the funeral. However, they seem very suspicious. They decide not to report his death and go straight to the funeral hall. In addition, they do not seem to mourn for him and even ask the doctor to write up his cause of death as a heart attack.

Dae Sik is taken into custody and is interrogated after being suspected for mur-dering his own father. It turns out that he is seriously addicted to bitcoins and also suffers from anger management issues. Meanwhile, a dead rat is found at Sang Goo’s place, and Beom decides to perform an autopsy on it. This brings an unexpected result.

It turns out that the amount of poison the late Yeom Sang Goo took was minimal and thus, he did not die due to that. The team is back to square one and begin the investigation all over again. Meanwhile, Eun Sol obtains footages of both Sang Goo’s son and daughter taking him outside of his home. She also finds out that Sang Goo left around 600,000 to 700,000 dollars in inheritance.

While grilling some pork skin at a restaurant with Beom, Sol suddenly has an epiphany and asks for surveillance footages of Yeom Sang Goo’s area on the day of his death. Although Sang Goo’s children have done nothing good, their physical altercations with their father fails to prove to be the cause of death. Meanwhile, Sol finds an important lead.

Prosecutor Do Ji Han firmly believes that the killer is the same killer from 30 years ago, and therefore, is a serial killer. Realizing the graveness of the situa-tion, a new team is formed solely for this case, and Pyo Yoo Seong takes the lead. Although Sol repeatedly tells Ji Han that they cannot ignore the possibility of a copycat, Ji Han refuses to listen.

The body of Seong Hye Bin, a young woman, is found in the mountain by a hiker. Beom notices that her limbs are tied with a knot and that her fingerprints are missing. He also meets with Deputy Chief Prosecutor Do Ji Han, but the two do not get along at all. Ji Han tells him that the culprit is a serial killer.

Lee Kyung Ja, a past victim and survivor of the Wuseong Serial Murder case, is found dead. Pyo Yoo Seong leads the autopsy himself while Beom grudgingly obliges to be his assistant. During the autopsy, Beom smells something odd and starts sniffing around. Meanwhile, news reporters ask Do Ji Han if he is to blame for the death of Kyung Ja.

The team begins narrowing down the culprit. They compile a list of home addresses where the water usage has been unusually high. While investigating, Ji Han finds Detective Choi Hyun Seok’s wheelchair and a rifle bore-cleaner next to it. Suddenly, Oh Jong Cheol, another detective, greets him warmly and invites him over to his house.

Baek Beom finds out the truth behind all the events that had occurred in the past. Man Sang is called into the prosecution once again when his lawyer was found dead in her car. Eun Sol is convinced that Man Sang is behind her death, but there is no evidence to support it. Meanwhile, Beom takes his first vacation in 10 years.

They have all the suspicions, but none of the evidence. All the puzzle pieces of Han Ji Won’s death don’t fit to find a cause of death. However, Beom goes through all the autopsy records to figure it out and help solve the case.