For two weeks, Zeng Lei, Yin Zhengyu and Li Jian followed and monitored Zuo Tongtong in shifts 24 hours a day. From the villa to the clinic, Zuo Tongtong's every move and everywhere she went was under their control, and even the restaurants and shops she went to were followed by them all the way. Sure enough, the hard work paid off, and soon they found some clues.

Every Tuesday afternoon, Zuo Tongtong drives alone to the suburbs to pick up medical supplies purchased by the clinic.

Zeng Lei was skeptical, why didn't the seller send the medical supplies directly to the clinic, instead of going to the suburbs so far away to trade? Why did Zuo Tongtong go alone every time without being accompanied by the staff of the clinic? Since it is a medical supply, is it necessary to be so mysterious? No, it's not normal!

Zeng Lei had a series of question marks in his mind, and he knew that although he couldn't use his identity as a police officer to search Zuo Tongtong's car openly, he didn't want to let go of this clue easily. Zeng Lei communicated his suspicions with his partners in the detective agency. The feedback was that everyone agreed that there must be something suspicious in this, and that it was not that simple. So Zeng Lei decided that next Tuesday afternoon, they must check the "goods" that Zuo Tongtong received.

The day came quickly, and just after noon, Zuo Tongtong was seeing patients at the clinic as usual. At this time, Zuo Tongtong received a phone call, and the other party's cold voice asked, "Doctor Zuo?" ”

After Zuo Tongtong made an "um" sound, the other party simply said: "Three o'clock in the afternoon, see you at the old place!" After saying that, the other party hung up the phone.

Zuo Tongtong cleaned up, explained the matter of the clinic to another doctor, and then drove alone, ready to go to the suburbs to "pick up the goods".

Ah Chao heard the content of the call between Zuo Tongtong and the other party on the listening equipment used by the detective, and immediately notified Zeng Lei of the news.

Zeng Lei, who had been waiting outside the clinic for a long time, suddenly became nervous after receiving the news. He is eager to solve the case as soon as possible, so he is looking forward to discovering something, but at the same time, he is worried that this operation will really uncover the mystery of the serial disappearances and see the side he does not want to see.

Zeng Lei, who was full of contradictions, saw Zuo Tongtong's car coming out of the clinic, so he cautiously drove behind him. He didn't want to startle the snake, so in order not to let him find out that he was being followed, he deliberately kept a certain distance from Zuo Tongtong's car, and at an intersection after half an hour, he replaced another car prepared for him by Li Jian in advance and continued to track.

Zuo Tongtong drove leisurely and looked in a good mood. She turned on the stereo in the car and played a soft and soothing pop song - "I Want You" from it. Zuo Tongtong listened to the music and gently followed: "I want you to be by my side, I want you to dress up for me." The wind blew this night, and it tickled my heart. My lover, I'm in a foreign country, looking at the moon......"

It took about an hour to drive to reach the suburban destination.

As soon as Zuo Tongtong's car stopped, the sensitive Zeng Lei saw Yin Zhengyu hiding in the dark and shooting at Zuo Tongtong with a camera. Zeng Lei was a little hesitant, he was worried that Yin Zhengyu would be discovered. Because he didn't know what he would encounter next, he was afraid that he would not be able to protect Yin Zhengyu's safety.

Observing that Zuo Tongtong had not gotten out of the car, Zeng Lei suddenly sighed in his heart, shivered, his hairs stood up, and he had an ominous premonition.