Jang Jae-kyung became suspicious of the person who made him addicted to drugs and the death of his friend Park Joon-seo, who found him again after a long time, and decided to track it down.It is reported that during this process, Zhang Jae-kyung and Oh Yoon-jin met again at a friend's funeral. Due to the contents of the will announced at the funeral, the two were designated as Park Jun-rui's insurance money heirs.

First, after Jang Jae-kyung caused trouble in the emergency room, after hearing a doctor say, "That policeman seems to be addicted to drugs," he explained his behavior and raised his voice and said, "I am a criminal police officer from the Narcotics Investigation Team of the Anhyeon Police Station, notThe police who take drugs, but the police who catch drug criminals!"

Then, he suspected that Zhang Zhejiu (played by Cui Yongyu) killed Park Junrui out of revenge, and went to the ward to ask him if he knew the medicine he and Park Junrui had taken.Zhang Zhejiu was horrified by Zhang Zaijing's strong oppression and revealed that the pills were traded online by a mysterious President Yin.

It is reported that Kong Jinxu (played by Yoo Hee-kyung), who escaped with Jang Jae-kyung's gun at that time, met President Yoon (played by Baek Ji-won). The doctor instructed the person who injected drugs for Jang Jae-kyung on the condition that he ditched Kong Jinxu, who was currently doing direct transactions, and conducted a direct transaction.fact.

Zhang Zaijing checked the CCTV of the station where he opened his eyes after being kidnapped, and found that he was carried into the elevator and walked to Exit 3-4.Jang Jae-kyung speculated through suspicious text messages that the person who wanted him to appear at Exit 3-4 and the person who kidnapped him and gave him medicine might be the same person, but he didn't know why Park Jun-seo's SOS "1882" was included in the text messages, and he felt very depressed.Jang Jae-kyung learned from the Criminal Division Park In-soo (played by Kim Min-sik) that the cause of Park Jun-seo's death was a fall from the 9th floor. The case had been personally examined by Park Tae-jin (played by Kwon Yool), deputy prosecutor of the Criminal Division 1 of the Anhyeon District Prosecutor's Office and the body was sent toHe was confused about the morgue of Andyeon University Hospital.When Detective Yoo Kyung-hwan (Park Jung-pyo) received a call from Park Tae-jin and wanted to drive him away, Zhang Jae-kyung grabbed Park Jun-seo's cell phone and hid in the toilet. He quickly checked the call details and confirmed that Park Jun-seo had communicated with Oh Chi-hyun, Park Tae-jin, and others before his death.Won Jong-soo, Oh Yun-jin and others called.

Jang Jae-kyung, who caused a stir with Park Jun-seo's cell phone, received a text message from the number that sent him the video, "Looks like he took medicine?", and he kept replying in an attempt to track the location.It is reported that the protagonist of the text message seemed to know the meaning of "1882" and provoked Zhang Zaijing. The location tracking results showed that the text message was written on the move and was heading to the morgue of Anhyeon University Hospital.Jang Jae-kyung, who went to the morgue of Andyeon University Hospital, was very puzzled when he learned from the staff that Park Jun-seo's body had been picked up by his family and was preparing for a funeral.He met Wu Yunzhen who had moved places and was withdrawing money from an ATM machine, and asked her what Park Junrui said the day before his death, but did not receive a satisfactory answer.

Afterwards, Zhang Jae-kyung ran to the mobile funeral room of Park Jun-seo’s family and friends and said that there were many doubts about Park Jun-seo’s death and that an autopsy would be performed.At this time, Won Jong-soo (played by Kim Kyung-nam) appeared, followed by Park Tae-jin (played by Kwon Yool) and Oh Chi-hyun (played by Cha Ye), and greeted Zhang Zaijing.Zhang Jae-kyung raised his voice to Park Tae-jin and asked him why he was convinced that Park Junrui committed suicide, but the same footprints as Park Junrui's shoes were not found at the scene.Park Tae-jin explained that Park Jun-seo was in pain because of his daughter Yoon-hee's long-term illness and death, but Jang Jae-kyung sneered, "Everyone is saying that the situation is like this, why no one mentioned the most important thing?" and pointed out that Park Jun-seo had a relationship with Won Jong before his death.Call records of Soo, Park Tae-jin, and Oh Chi-hyun.Just as Oh Chi-hyun was pumping his fists excitedly, Park Jun-seo's wife Choi Ji-yeon (played by Jung Yoo-min) burst into tears, temporarily calming the scene.

During this period, Zhang Zaijing insisted on conducting an autopsy, and Wu Yunzhen sent Cui Jiyan home to pack her luggage.Later, Xu Zhusong (Jung Soon-won) belatedly confessed to Zhang Jae-kyung that Park Junrui came to him a week ago, took out three life insurance policies for his company Audio File, and left a will with his lawyer.At this time, Park Tae-jin began to read out Park Jun-seo's will, revealing that Park Jun-seo had taken out three life-and-death insurances in the name of Audio File Company through Heo Joo-song a week before his death, and announced: "I, Park Jun-seo, own 100% of the shares of Audio."All the shares of File Company will be inherited by Zhang Zaijing and Wu Yunzhen in equal proportions."At the same time, Wu Yunzhen, who was waiting for the elevator to come up, received the document handed over by the guard and was surprised when he saw the will. Zhang Zaijing was also confused by the hostile looks of his friends.