Cambrian Period Episode 4 Recap
> Cambrian Period Recap
Mai Quancheng was brought to the police station for questioning regarding Shen Keke's disappearance. He insisted that on the night in question, Shen Keke simply gave him some money and left, and he had no further information about her whereabouts. Officer Cai confirmed Mai Quancheng's account, but the police pressed for more details, which Mai Quancheng claimed not to know.
After returning from the police station, Mai Quancheng reluctantly confessed to Tang Yin and Jian Zi that he had put an aphrodisiac, which he called "Yin and Yang hehe umbrella," into the drinks they shared that night. Tang Yin, enraged, demanded he hand over the rest of the drug. She then poured the substance into a bucket and set it on fire to destroy it.
Unexpectedly, the fumes from the burning drug affected all three of them, leading to an awkward and comical situation. Tang Yin received a notification from the police to collect her belongings from Shen Keke's apartment. Upon seeing the ransacked home, Tang Yin immediately sensed that something terrible had happened to Keke. Li Yongji tried to comfort her, assuring her that they would quickly uncover the truth.
Tang Yin returned a jacket Li Yongji had lent her, expressing her hope that he would bring Keke back to her safely, just as he had returned the jacket. Meanwhile, Lock Tou visited Qiumen and discovered that Zhan Shili had obtained surveillance footage showing Shen Keke and Tang Yin at the casino on the day of Keke's disappearance. This evidence suggested Lock Tou's close ties with Shen Keke, leading Zhan Shili to suspect him and refuse to meet with him.
Angered, Lock Tou tracked down the casino boss and severely reprimanded him for releasing the footage. Separately, Zhan Shili met with Jian Zi, informing him of the urgent situation and stressing that finding Shen Keke and the encoder was paramount, even if it meant risking his life. Later that evening, Tang Yin, unable to sleep, chatted with Jian Zi through the wall.
She confided her deep worry after seeing Keke's messy home and asked Jian Zi to help her investigate Keke's whereabouts. Jian Zi, conflicted while looking at the information Zhan Shili had provided about Shen Keke, eventually agreed. Jian Zi then began to speak tenderly about his mother, sharing her wisdom about love and freedom, unaware that Tang Yin had already drifted off to sleep. Suddenly, the doorbell rang downstairs.
Jian Zi went to answer it, finding Lock Tou at the door. As adopted brothers under Zhan Shili, they shared a strong bond despite not seeing each other often. Lock Tou, protective of his easygoing younger brother, joined Jian Zi for drinks. As they grew more inebriated, they began to playfully spar, their boisterous movements waking Tang Yin. She came downstairs to find the two men wrestling on the floor, mistakenly believing they were romantically involved.
In a swift, unthinking motion, Lock Tou threw a dagger, which grazed Tang Yin's neck. Seeing her own blood, Tang Yin fainted. Jian Zi rushed to hold her, his face etched with worry, a sight that made Lock Tou realize his younger brother had finally awakened to romantic feelings. The next morning, Tang Yin noticed the bandage on her neck and immediately began to playfully tease Jian Zi about the previous night's misunderstanding, accusing him of being gay.
Jian Zi earnestly tried to explain that Lock Tou was his brother and that their grappling was merely a dispute over inheritance, a story Tang Yin found laughable and entirely unbelievable, dismissing it as a "dog blood script." Tang Yin, unconcerned about his sexual orientation, told him that love transcends gender and that she would keep his "secret" as long as he stopped "chasing" her.
With her mind set on her priority, she declared her intention to go see Officer Li. Tang Yin then met with Officer Cai, who informed her that Shen Keke's case might involve the underworld, advising her to be cautious. Tang Yin, frustrated by the slow pace of the investigation and recalling Keke's nervous demeanor and the state of her apartment, insisted Keke was in danger.
Based on her limited acting experience, Tang Yin impulsively decided to find the underworld herself, confidently listing several places where she believed they might be. Jian Zi, tracking her location by phone, quickly arrived to accompany and protect her. Tang Yin habitually patted Jian Zi's head, but he awkwardly told her to stop, saying he wasn't a child anymore. Tang Yin playfully agreed, only to pat his head again, clearly not taking his words seriously.
Their search led them by chance to Lock Tou's territory. Tang Yin, believing she had found a "gangster" establishment, comically attempted to use dramatic, coded underworld language to "socialize" with Lock Tou's men, much to Jian Zi's quiet amusement. Lock Tou then appeared, and Tang Yin recognized him as Jian Zi's "ambiguous brother" from the previous night, realizing she had once again stumbled into the wrong place.
Over drinks, Tang Yin continued to tease Jian Zi, at one point mistakenly referring to Lock Tou as Jian Zi's "older sister" and comparing Jian Zi's "lack of ambition" to his "successful" sibling. Lock Tou, chuckling, clarified that they were not blood brothers but rather adopted siblings, and that Jian Zi simply preferred a quiet life, possessing more potential than Lock Tou himself. Later that night, Tang Yin was still fixated on finding Keke.
Jian Zi, remembering a suspicious car he had noticed in a scrapyard earlier that day, decided to investigate. Donning his Facebook mask, he returned to the car and found a crucial clue. Following the lead, he went into a nearby forest, where he tragically discovered Shen Keke's body. At that moment, a patrolling forest ranger came upon him.
