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Cassiopeia (2022) movie poster

Plot Summary

Cassiopeia (2022) Plot Summary Explained

Release, runtime and language
2022 · 101 mins · Korean
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Directed by
Shin Yeon-shick
Starring
Kim Jung-pal, Ahn Sung-ki, Park Myung-shin, Park Jae-min, Jeong A-mi, Lee Young-lan

Su-jin strives for a flawless life as a lawyer and single mother, and dreams of sending her daughter Gina to study abroad with her ex-husband. As her career demands more of her time, Su-jin's father, In-woo, moves in to help care for Gina. Their lives together are disrupted when Su-jin is involved in a car accident and receives a surprising medical diagnosis, forcing her to confront unexpected challenges.

On this page (5)
  1. 1 Where to watch
  2. 2 What happens: full plot
  3. 3 Movie threads
  4. 4 Movies like Cassiopeia
  5. 5 Every angle
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Full plot summary · contains spoilers

What Happens in Cassiopeia: Full Plot Summary

The whole story of Cassiopeia (2022) explained, from the opening scene to the final frame: every key event, every twist and what it all adds up to. Read it as a quick recap before the sequel, to check a scene you missed, or to finally understand what really happened.

The story centers on the metaphorical meaning of the Cassiopeia constellation, which serves as a guide to finding the North Star. In this narrative, family is portrayed similarly—not by providing a direct map for life, but by acting as a silent protector and a source of support when one has lost their way.

Su-jin (Seo Hyun-jin) is a highly successful lawyer who seemingly has a perfect life as both a professional and a mother following her divorce. She is focused on the future of her daughter, Gina (Joo Ye-rim), who is preparing to study in the United States. Supporting the household is Su-jin's father, In-woo (Ahn Sung-ki), who lives with them and helps care for his granddaughter.

However, their lives take a drastic turn when a car accident leads to Su-jin being diagnosed with Alzheimer's disease. As her memory gradually fades, she begins to regress emotionally and mentally, becoming like a young child. Throughout this heartbreaking transition, In-woo (Ahn Sung-ki) remains steadfast, protecting his daughter and staying by her side in a journey of deep love and accompaniment.

Last updated: October 28, 2026 at 07:15

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Movie threads

More Movies Like Cassiopeia, by Mood & Story

Curated lists built around what makes Cassiopeia tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Quietly Devastating Family Caregiving Movies Like Cassiopeia

Slow, tender dramas where fragile care reshapes love, independence, and hope. Movies like Cassiopeia use patient, intimate storytelling to explore what happens when illness makes independence fragile. Expect slow-moving family dramas centered on devoted caregiving, shifting responsibilities, and love tested without villains or spectacle. These stories trade suspense for emotional weight, pairing melancholy with small moments of warmth and a bittersweet sense of hope.

  • tender
  • devastating
  • familial devotion
  • caregiving
  • grief
  • quietly moving
  • Tone: melancholic, tender, bittersweet
  • Pacing: slow, intimate, character driven
Why these movies?

The story pattern: Stories typically begin with a family organized around an independent, responsible person. When crisis changes that balance, relatives move closer and caregiving becomes a new way of expressing love. Daily routines and small reversals gradually reveal the costs of dependence, while hard choices and moments of recognition leave the family changed but not entirely without hope.

Why they belong together: These films share a tender melancholy, slow character-driven pacing, and emotionally heavy family stakes. Their focus is the quiet transformation of independence into dependence and the discovery of devotion through everyday care. Like Cassiopeia, they find profound feeling in modest actions and offer warmth without avoiding grief, making their conclusions bittersweet rather than despairing.

Memory Loss and Identity Dramas Like Cassiopeia

Intimate dramas follow capable adults confronting regression, dependence, and a fractured sense of self. If you liked Cassiopeia, explore dramas where memory loss unsettles the foundations of a carefully controlled life. These intimate stories follow capable people as cognition, relationships, and self-direction shift, often forcing relatives to reconsider roles built around competence and certainty. Their measured pace emphasizes behavioral detail, emotional uncertainty, and painful adaptation.

  • memory loss
  • identity
  • cognitive decline
  • dependence
  • grief
  • reflective
  • Tone: melancholic, reflective, somber
  • Pacing: slow, gradual, observational
Why these movies?

The story pattern: After a shock diagnosis or disruption, a previously self-directed character begins to struggle with memory, judgment, and everyday control. The narrative tracks the painful gap between an adult self-image and a changing mind, while relatives' roles and assumptions are reorganized. Symbolic objects and repeated routines make the loss tangible, culminating in adaptation rather than a neat triumph.

Why they belong together: The shared center is not spectacle but the quiet erosion of cognition and independence. Like Cassiopeia, these dramas favor gradual reveals, reflective domestic scenes, and adult regression over fast twists. Emotional intensity comes from identity, caregiving, and grief meeting, with bittersweet endings that allow companionship and love without denying irreversible loss.

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Every angle

Cassiopeia (2022) Explained: Plot, Timeline & Characters

Everything about Cassiopeia in one place: what happens in the plot summary, the timeline in chronological order, the characters and meaning and a spoiler-free summary. What's After the Movie adds the cast, box office and post-credit scenes.

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