Episode 7 recap: The Truth of the Child-Obsessed Witch Case Revealed.

Zhi Renqiang and Er Pijiang once went to find the parents of the missing children. Gu Yuan and Che Suwei speculated that Zhi Renqiang might have asked Er Pijiang to help him find the parents. Che Suwei played mahjong with some ladies to inquire about Zhi Renqiang's situation. She discovered that Qiang's mother had a man in her life, but he disappeared at some point.

Che Suwei and Gu Yuan went together to find Qiang's mother's husband to inquire about Zhi Renqiang. They discovered that Zhi Renqiang was not Qiang's biological child. Qiang's mother had lost her own son and mistakenly adopted another child as a replacement for him. Qiang's mother's husband showed them a photo of their biological child, which resembled Xiao Zhi. Suddenly, everything became clear.

Qiang's mother sent a bracelet to Sun Dashuai and asked him to meet her alone. However, she used this opportunity to lock Sun Dashuai up and seek revenge for Zhi Renqiang. Gu Yuan and Che Suwei went to Sun Dashuai's residence to inquire about the situation. They learned that Sun Dashuai had been deceived and gone out. They asked the butler if Sun Dashuai had a birthmark on his face.

The butler revealed the information about the birthmark, and Gu Yuan and Che Suwei showed him the photo, confirming that Sun Dashuai was Qiang's mother's biological son. They also received a letter left by Sun's mother before her death. After reading the letter, Gu Yuan and Che Suwei learned that Sun Dashuai was indeed Qiang's mother's son, and they had to find Qiang's mother immediately to save Sun Dashuai.

At Qiang's mother's house, Gu Yuan and Che Suwei did not find Sun Dashuai but unexpectedly rescued Xiao Zhi. Gu Yuan and Che Suwei believed that Qiang's mother had sought revenge and her greatest wish was to find Zhi Renqiang. They went to Zhi Renqiang's grave to find Qiang's mother. Gu Yuan and Che Suwei found Qiang's mother, but she refused to admit her actions and refused to reveal Sun Dashuai's whereabouts. They had no choice but to reveal the truth.

Gu Yuan told Qiang's mother that Er Pijiang wanted to help the suspected Zhi Renqiang and stole Xiao Zhi's shoes from her to divert the attention of the patrol station. However, they didn't expect that Zhi Renqiang, in order to save Er Pijiang, chose to jump off a cliff and commit suicide. Qiang's mother refused to accept what Gu Yuan said and believed that Gu Yuan should be held responsible for Zhi Renqiang's death. Gu Yuan and Che Suwei had no choice but to show the photo and reveal that Sun Dashuai is her son.

When Qiang's mother saw the photo, she finally believed that Sun Dashuai was her biological son. Afraid that she had killed her own son, she immediately took Gu Yuan and the others back to rescue him. Sun Dashuai was trapped in the basement with a charcoal basin. When Gu Yuan and the others arrived, Sun Dashuai was in critical condition, but fortunately, Che Suwei saved him just in time, and he narrowly escaped.

After Sun Dashuai regained consciousness, he immediately pointed a gun at Qiang's mother, wanting to know Xiao Zhi's whereabouts and intending to shoot Qiang's mother. In order to stop Sun Dashuai, Gu Yuan and Che Suwei had to reveal the truth that Qiang's mother was Sun Dashuai's biological mother. However, Sun Dashuai didn't believe it. Gu Yuan gave Sun Dashuai the letter left by his mother before her death, and only then did Sun Dashuai believe the relationship between him and Qiang's mother. However, he still wanted to hear it directly from Qiang's mother, so he forced her to say the last two lines of his nursery rhyme.

Qiang's mother dared not admit that she was Sun Dashuai's mother. Sun Dashuai could only point the gun at his own head and force Qiang's mother to say the last two lines of the nursery rhyme. However, Qiang's mother had already prepared herself and took potassium cyanide to commit suicide. Sun Dashuai learned about his identity and witnessed his mother's death in front of his eyes, which he couldn't accept. He could only leave, holding his mother's body, in sorrow.

The child abduction case was solved, and the patrol station published another report. At this time, Yan Jun Jie left the patrol station and went to take the police examination. Strange things happened at the Boxing Gold Mine, where someone was carrying a corpse. The people at the mine, unaware of the situation, thought they saw a ghost and panicked, firing a few shots. However, the body continued to move forward, leaving them scared and fleeing in chaos.