The eighth installment of Perfect Family commences with a flashback of Soo-yeon’s youth. Not being adopted, Soo-yeon was trafficked by a human trafficking network and was on the verge of being sold to a buyer. The night before her departure to the Philippines, Soo-yeon successfully escapes from the traffickers. One man pursues her but she repels him.
In the present, Soo-yeon admits that it was simple to kill someone, but she remembers how Hyun-min started a fire in Sun-hui’s room. She says that at that point in time, allowing Sun-hui to perish did not appear as simple to her.
In the current timeline, Hyun-min points the gun at Soo-yeon and accuses her of stabbing Sung-woo. He further mentions that Sung-woo is the one who fired his weapon at her not him. Then a gunshot is heard.
Another memory reveals Soo Yeon participating in a basketball game with the group. She is willing to let Sun hui win at anything, even a game of scissors, but she is not ready to leave Kyeong-ho for her. She is ready to overlook all her past actions if it means she can have Kyeong ho to herself, as he is valuable to her.
Jin-hyeok and Eun-joodiscover that Sun-hui’s body was not located in the house. After discovering Sung-woo’s gun’s shell casing outside the Choi family house, the police find out it was used to shoot a blank. Jin-hyeok secretly phones Hyun-min and requests him to come back to Sun-hui. Hyun-min reminds Jin-hyeok of his promise to pay him and urges him to do it promptly before Sun-hui wakes up and discovers the truth.
Sun-hui awakens in the deserted structure and attempts to escape but encounters Hyun-min. She inquires about Soo-yeon’s location but Hyun-min declines to give a response. Meanwhile Dong-ho is present at Sung-woo’s funeral who eventually died. He becomes emotional because he was not able to rescue his friend. Meanwhile Jin-hyeok requests that Hyun-min wait a while as he gathers money to pay him for something.
Sun-hui begins inquiring from Hyun-min about Soo-yeon’s well-being. He informs Sun-hui that Soo-yeon’s fate rests in Sun-hui’s hands. Hyun-min consents to reveal to Sun-hui the truth regarding Kyeong-ho’s death and Sun-hui’s disappearance. Outside the funeral parlor, Dong-ho reminisces about the good times he shared with Sung-woo while holding the lighter he received as a gift.
At that moment, Eun-joo and Jin-hyeok arrive, requesting to speak with Dong-ho. Jin-hyeok informs Dong-ho that Soo-yeon is not the one who abducted Sun-hui. He further states that Sun-hui is in serious jeopardy. Dong-ho requests the lawyer to provide him with the complete truth. Meanwhile, Hyun-min informs Sun-hui that he is her real father and that she was separated from him as a child.
Sun-hui confesses that she had suspected this because of how recognizable he appeared when they initially crossed paths. Hyun-min discloses that Jin-hyeok and Eun-joo are responsible for their son’s death and falsely accused him of starting the fire. Following his imprisonment, the couple took in Sun-hui and kept her captive in order to prevent Hyun-min from disclosing the truth to the authorities. Sun-hui does not accept Hyun-min’s statement. A memory sequence reveals Hyun-min attempting to contact Sun-hui shortly after being released from prison.
Hyun-min expresses his surprise to Sun-hui about seeing her living a regular life with Jin-hyeok as her father and Eun-joo as her mother.
He tells the events of Kyeong-ho’s death day and explains how he tracked Sun-hui to Kyeong-ho’s residence on that tragic day. Hyun-min discloses witnessing Soo-yeon running away from the residence and Sun-hui exiting the residence with blood on her.
Hyun-min informs Sun-hui that he chased after Eun-joo as she went into Kyeong-ho’s house the night he passed away. He remembers attempting to go inside the house but claims he couldn’t do it when Kyeong-ho’s parents showed up. Hyun-min informs Sun-hui that Eun-joo departed when Kyeong-ho’s parents came, then came back later that evening and set fire to the house.
Hyun-min persists in informing Sun-hui about his threat to uncover Jin-hyeok and Eun-joo, but discloses that they coerced him to stay silent in order to protect Sun-hui. Upon discovering that Soo-yeon was aware of Kyeong-ho and his parent’s passing, Jin-hyeok coerced Hyun-min to eliminate Soo-yeon. Hyun-min informs Sun-hui that he obeyed Jin-hyeok’s commands to ensure Sun-hui’s wellbeing.
Simultaneously, Jin-hyeok informs Dong-ho that Hyun-min has taken Sun-hui. He mentions he was the individual who spent 12 years in prison for the murder of their biological son. Jin-hyeok mentions that Hyun-min extorted them for many years and also warned of killing Sun-hui.
A conclusion reveals Soo-yeon hanging around the bar, anticipating her sister finishing her shift. While heading back, the pair have a drink and talk about their individual aspirations. Soo-yeon’s sister confides in her about her ambition of achieving great success and the effort she is putting in to make that dream a reality.
The following day, Soo-yeon meets Sun-hui and discovers that she was adopted by a wealthy family and enjoyed a luxurious lifestyle. As the episode concludes, Soo-yeon envisions living Sun-hui’s life.
So is Soo Yeon really dead? And is Hyun min really speaking the truth?