A Girl at My Door

Do-hee lies because her stepfather Yong-ha tells her to say that Yeong-nam sexually abused her. Yong-ha coaches Do-hee to make this false accusation as revenge after he sees Yeong-nam kissing another woman and wants to destroy her reputation. Do-hee, having no one else to trust and being manipulable due to her trauma, follows her father's instructions.

Yong-ha accuses Yeong-nam after he sees her kissing her ex-girlfriend in public. Knowing that Yeong-nam is a lesbian and that this could scandalize the conservative town, Yong-ha weaponizes her sexuality by claiming she sexually abused Do-hee. This is retaliation for Yeong-nam intervening in his abuse and threatening his control over the town.

The tension between Yeong-nam and Yong-ha escalates after she discovers he employs underpaid illegal immigrants.

At the end, Yeong-nam stops her car as she's leaving Yeosu and asks Do-hee to leave with her. This is an offer to take Do-hee away from her abusive home and start a new life together. The question carries deep meaning because Yeong-nam is offering not just rescue but a mother-daughter relationship, though whether Do-hee accepts remains ambiguous.

Earlier, Do-hee imitates Yeong-nam's appearance and calls her 'Mom' in her thoughts, showing her desperate need for maternal connection.

Yeong-nam was a police academy instructor in Seoul who was involved in a personal scandal related to her homosexuality. This scandal is why she was transferred to the small town of Yeosu, where she tries to keep a low profile while dealing with the locals' drinking culture and prejudices.

Do-hee imitates Yeong-nam because she has never had a positive adult figure in her life. After experiencing constant abuse from her stepfather and grandmother, Yeong-nam becomes the first person who treats her with kindness and respect. Do-hee models herself after Yeong-nam as a way to cope with trauma and create a new identity away from her abusive household.

Do-hee wears Yeong-nam's uniform, cuts her hair in the same style, and bathes with her - behaviors showing desperate attachment.

The villagers stay silent because Yong-ha is the town's main employer as an oyster farmer. Many residents work for him and depend on his business for their livelihood. Additionally, the community appears desensitized to domestic abuse and may view it as a family matter. Their silence enables Yong-ha to continue abusing Do-hee without consequence.

Yong-ha's mother is found floating in the water early in the film. The town rules it an accidental death linked to drunk driving. While the exact circumstances are unclear, it happens before Yong-ha's attack on Do-hee that prompts Yeong-nam to intervene. The death removes another adult who might have protected Do-hee.

Yeong-nam drinks heavily as a coping mechanism for her loneliness and the stress of her new environment. As a lesbian in a conservative small town, she cannot be open about her identity. She decants soju into water bottles, suggesting she wants to hide her drinking from colleagues, adding to her isolation.

When Yeong-nam visits Do-hee after her release, she asks whether Do-hee deliberately caused the events involving her father and grandmother. This suggests Yeong-nam suspects Do-hee may have manipulated situations to escape her abuse, possibly even having a hand in Yong-ha's mother's death. It leaves ambiguous whether Do-hee is truly capable of such manipulation or if Yeong-nam is projecting guilt onto her.

Do-hee's grandmother was also abusive, and Do-hee had the most to gain from both adults being gone.

The investigators treat Yeong-nam's homosexuality as inherently suspicious, suggesting they believe gay people are more likely to commit sexual abuse. One explicitly states that her conduct would be inappropriate for a gay woman. This reflects the period's homophobia in Korean law enforcement and society, where being lesbian automatically made her a suspect in the abuse case.

Do-hee bathing with Yeong-nam is not sexual. It represents Do-hee's desperate attempt to bond with the first kind adult figure she's ever had. She wants to be close to Yeong-nam, smell like her, and feel protected. This scene shows Do-hee's starved need for affection and her tendency to merge with protective figures as a coping mechanism.

Yeong-nam's ex-girlfriend tracks her down to Yeosu to ask her to move to Australia together, offering a fresh start away from Korea's conservatism. The visit exposes Yeong-nam's internal conflict between pursuing personal happiness with someone who accepts her and her sense of duty to protect Do-hee. Their argument and kiss are witnessed by Yong-ha, triggering his accusation.