Ren Yu (人鱼)
Plot Overview
Set in a rainy fictional town in the 1990s, the story follows high school student Su Lin (Huangyang Tiantian), who grows up in a poor, patriarchal family where she is neglected and constantly overshadowed by her younger brother. After she earns the lead role of the Little Mermaid in an English recital play, her jealous classmate Ma Na instigates a conflict that causes Su Lin to accidentally fall into an underground drainage pipe, where she is presumed dead. Her disappearance becomes intertwined with the high-profile "Three Female Corpses Case" discovered in the city's underground river, and her fate becomes deeply connected to the investigation led by retired police officer Gu Hao (Dong Yong) and her schoolmate Jiang Ting (He Sitian). The drama unfolds with a dual-narrative structure, cutting between the investigation above ground and Su Lin's struggle to survive in the darkness below.
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Broadcast Edits & Novel Accuracy Check✂️ Broadcast Edits & What You Missed:
he drama is a faithful adaptation of the novel's core plot, setting, and characters, but some elements are altered for censorship or production constraints).
- Censored Content: The original novel contains a much more detailed and brutal depiction of Su Lin's survival and the grim conditions of the underground environment, which were softened or omitted for broadcast standards.
- Narrative Structure: The novel employs a four-perspective narrative (Su Lin's diary, Jiang Ting's guilt, Gu Hao's pursuit, and the police investigation) to unravel the mystery, while the drama streamlines this for a more linear, visual approach.
- Scene Truncation: A significant subplot in the novel involving the "Three Female Corpses Case" and its direct connection to Su Lin's life is far more fleshed out and disturbing in the book, with details potentially removed from the drama for censorship.
- Character Depth: The novel provides a more extensive exploration of the motivations and backstories of the secondary characters, particularly the school bully Ma Na and the retired police officer Gu Hao, which may be condensed or simplified in the drama adaptation.
Main Cast
Deep Dive: Story Arcs & Episode Guide
The series has 16–22 episodes (approx. 45 min each). It can be roughly divided as follows:
- Act 1: The Disappearance & Emerging Investigation (Episodes 1-6 approx.): Su Lin falls into the underground drainage system after a conflict with her jealous classmate. The investigation into her disappearance begins, and the discovery of the "Three Female Corpses Case" in the city's underground river causes the two cases to intertwine.
- Act 2: Survival Underground & The Search (Episodes 7-12 approx.): Su Lin struggles to survive in the dark, treacherous underground pipes. Above ground, retired police officer Gu Hao and schoolmate Jiang Ting remain determined to find her, uncovering disturbing clues about her family and school life.
- Act 3: Unraveling the Truth (Episodes 13-18 approx.): The investigation deepens, exposing the hidden secrets of the families and individuals involved, including the truth behind Su Lin's family's neglect, the school bullying she endured, and the dark secrets of others. Multiple perspectives (Su Lin's diary, Jiang Ting's guilt, Gu Hao's pursuit) begin to piece together the full puzzle.
- Act 4: Return & Justice (Episodes 19-22 approx.): Su Lin finally emerges from the underground. She witnesses the truth of the "Three Female Corpses Case" and assists the police in bringing the criminals to justice, reclaiming her life in the process.
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