After Park Zhenqian sent Yin Taiyi home, he suddenly heard a scream and rushed upstairs. After Yin Taiyi saw the strange formula on the wall, the killer stunned her and dialed a phone call. The killer called her teacher. Park Zhenqian ran into the house and knocked down the killer with a punch. In the fight between the two, the killer clamored that Yin Taiyi must be eliminated. For the future, Yin Taiyi must die. But the killer never fought against Park Zhenqian, took out the time card, and disappeared into the darkness. Park Zhenqian found the phone dropped by the killer, and there was a call log on it.
After Yin Taiyi woke up in the hospital, she had lingering fears about what happened last night. She wanted to drink water, but she couldn’t hold the cup and broke it directly to the ground. Without waiting for Yin Taiyi to ease his emotions, Park Jinqian asked her senior sister Wen Ruizhen about the matter, hoping that Yin Taiyi would elaborate on the relationship between the two. But Yin Taiyi was very upset, thinking that his current situation was not suitable for discussing this topic.
Jin Dongwu took photos of Yin Taiyi’s house to collect evidence, and learned that Yin Taiyi and the murdered Wen Ruizhen belonged to the same scientific research group, and there were five people in the scientific research group. The old police asked Jin Dongwu to find out the identity information of the five people in the research group as soon as possible. . When Park Zhenqian saw the cell phone number left by the killer, he remembered that Park Sunling had also dialed this number before his death, and there was a message on the phone at that time that said “You found it yourself”. He thought it was very strange and asked someone to check the phone number.
Park Jinqian wanted to catch the killer as soon as possible, and Yoon Taiyi was worried that the killer would appear again to harm him, so he was unhappy in the car. Park Jinqian hoped that Yin Taiyi would be happy and clicked on the music again. Yin Taiyi said that he was very speechless and he was not in the mood to listen to music at all. Kim Do-yeon wanted to write good news and asked about the victims this time.
The old police did not want Kim Do-yeon to get involved in this matter, and left the restaurant early. Jin Doyeon immediately took a fancy to Jin Dongwu and wanted him to reveal the situation of the case. Under the guise of introducing him to his girlfriend, she hoped to get out of the case from the mouth of Jin Dongwu.
Yin Taiyi didn’t want this to cause trouble to her parents. She wanted to continue to study time travel. She guessed that the universe often gets attention from mathematics, and she can prove this time problem, but it just takes time. Shi Wuyuan once found her when she was studying, and asked her to help her organize a research institute to study the problem of time travel together.
Shi Wuyuan’s name was mentioned in the prophecy, and Park Sunling also approached Shi Wuyuan 10 years ago, saying that if he had a problem, he would find Yin Taiyi to solve the puzzle. Shi Wuyuan had contacted Park Zhenqian and planned to take out the prophecy to inform him, but suddenly the lights flickered and the killer appeared in front of Shi Wuyuan.
Jin Dongwu did not find the murderer who kidnapped Shi Wuyuan, and the surveillance footage did not find anything. Yin Taiyi’s mother hoped that the two sisters would check out and move back home, but Yin Taiyi was unwilling. After meeting with Park Jinqian, she planned to go to the house to look at the formula, but met Kim Doyeon who came back. Both were shocked. Park Jinqian also reminded. Kim Doyeon, I hope she will not interfere with this case.
Yin Taiyi hoped that Park Jinqian would tell him about the 1992 case. Later, he learned from the nuns that his father died in 1992 and thought that this matter might have something to do with him. Park Jinqian didn’t say anything for the time being, but he found that the photo of Yoon Taiyi when he was a child was exactly the same as the daughter of Dr. Jang Dongsik who was killed in 1992.
According to an internal police investigation, it was discovered that the previous mobile phone number had not been registered with the real name, but had call records and location. On the other hand, the nun revealed that a person who claimed to be a policeman also came to investigate Yin Taiyi. Yin Taiyi couldn’t figure out who it was, but thought it was Park Jinqian.
Park Zhenqian wanted to look up the clues of the phone number, leaving Yin Taiyi in the teaching building to calculate the formula. The killer suddenly came in in disguise and appeared in front of Yin Taiyi again. Yin Taiyi was frightened and kept backing away. Just as the killer attacked Yoon Tae-yi, Yoo Min Hyuk appeared to rescue her, but he was also stabbed. When Park Jin-qian arrived, the killer escaped through the time card. Shi Wuyuan was tied up with his hands and feet, and in front of him was the old policeman. He kept flipping through the language book, and when he turned to the last page, he found that one page was missing.
