Broker

Sang-hyeon operates the baby trafficking scheme to make money through the adoption black market. While he volunteers at the church and runs a legitimate hand laundry business, he uses his access to the church's baby box to steal infants and sell them to adoptive families through illegal channels. The money helps sustain his livelihood, though the work constantly puts him at risk of arrest.

So-young decides to abandon Woo-sung because she faces a broken future as a sex worker and cannot provide for the child. She leaves the baby in front of the church's baby box hoping he will be found and have a chance at a better life, though she initially leaves him to die. Her desperate circumstances and lack of support lead her to this tragic choice.

Detective Soo-jin adopts Woo-sung after the Yoon family fails to complete their adoption due to the illegal activity surrounding the case. Soo-jin has become emotionally attached to the baby during the investigation and decides to provide him with a home herself, keeping the possibility of reunion with his birth mother So-young alive.

Tae-ho is found dead at a transit center with a cache of cash. The news reports it as an apparent accident, though the circumstances remain ambiguous. The money he was supposed to use to retrieve Woo-sung is never recovered, and his death effectively closes that avenue of the investigation while leaving many questions unanswered.

So-young agrees to surrender after Detective Soo-jin offers her a deal: she would receive a three-year sentence for accidental manslaughter instead of facing a murder charge, with the possibility of seeing Woo-sung again after her release. The prospect of eventual reunion with her son motivates her to accept the plea deal.

The Yoon family is unable to complete their adoption because the brokers' illegal operation is exposed and investigated. The illegal nature of how Woo-sung was obtained through the trafficking ring makes the adoption process impossible, forcing the authorities to halt the arrangement.

Dong-soo helps Sang-hyeon because he was abandoned as a child himself at the nursery where he was raised. This shared experience of abandonment creates a deep emotional connection to Woo-sung's fate. Dong-soo hopes to find a good home for the baby and even dreams of them all forming a found family together.

The brokers' visit to the nursery reveals Dong-soo's own history of abandonment.

The van that appears at the end belongs to Sang-hyeon's hand laundry business and displays the same photo of the found family that So-young keeps. When the van rolls down its window and pulls away, it suggests Sang-hyeon may still be in the picture, maintaining a connection to So-young and Woo-sung despite his disappearance. The ending leaves their reunion uncertain but symbolically hopeful.

Sang-hyeon's estranged daughter tells him in the cafe that her mother wanted no contact with him, indicating a broken relationship between Sang-hyeon and his family. The reason is not fully explained, but it reflects Sang-hyeon's failed personal life and the isolation he experiences outside of his criminal partnership with Dong-soo. Soo-jin quietly observes this conversation, adding to the tension of the case.

Hae-jin, the young resident from the nursery who gets drawn into the brokers' circle, tries to reach the park where the found family is gathering but misses the reunion. An orphanage bus takes him away at the end, suggesting he will grow up in the system rather than finding his way into the unconventional family that gathered around Woo-sung.

Soo-jin eavesdrops on Sang-hyeon's conversation with his estranged daughter because she is still investigating the baby trafficking case and gathering evidence. This moment reveals additional personal details about Sang-hyeon's life and reinforces how the detective's professional duty intersects with the personal lives of everyone involved in the case.

Woo-sung is placed in the church's baby box after So-young abandons him there. When Detective Soo-jin begins investigating the trafficking ring, she has Woo-sung placed in the nursery as part of the investigation, connecting the abandoned infant to the case against Sang-hyeon and Dong-soo.

On the ferris wheel, Dong-soo expresses hope that all of them, Sang-hyeon, Dong-soo, So-young, and even Detective Soo-jin, could raise Woo-sung together as a found family. This moment represents the emotional core of the film, showing how circumstances have intertwined their lives despite their different roles in Woo-sung's story. The dream is ultimately dashed by the reality of their situations.