Behind the series
- First aired
- 2021
- Principal cast
- Jung Hae-in, Jisoo, Yoo In-na, Jang Seung-jo, Yoon Se-ah, Kim Hye-yoon, Jung Yoo-jin
- Story scope
- Season 1
About the series
Contains story spoilers.
Snowdrop puts a romance inside a university dormitory that gradually becomes the centre of a political hostage crisis. In Seoul in 1987, Eun Yeong-ro takes a dangerous chance on Im Soo-ho, a wounded young man she believes needs shelter from the authorities. Helping him means risking her place at the university and involving friends who have lives of their own to protect. What she does not understand is that his identity, his assignment and his obligations reach far beyond the building. The story keeps narrowing the distance between private affection and public danger: the person she wants to save becomes someone she must also fear, while promises of protection from outside the dormitory turn out to depend on calculations neither lover controls.
Their first encounters belong to a much lighter world. Yeong-ro and her roommates attend a group blind date, where tokens are used to choose partners and a paper plane becomes a small point of rivalry. Afterwards she meets Soo-ho in a record shop. When she cannot pay for a cassette, he buys it for her, and she tries to return the favour. Spotting officers looking for wanted men, she pretends they are a couple having an argument, giving him an opportunity to avoid scrutiny. Her explanation is personal: her brother has been arrested during a protest. An invitation to coffee seems to offer the beginning of an ordinary relationship, but Soo-ho does not arrive. The absence leaves her with a memory of kindness rather than any reliable knowledge of the man.
Months later, that incomplete understanding shapes her response when he climbs into her dormitory room bleeding. Yeong-ro assumes he is being pursued for protesting, and her friends help conceal him as security agents search the building. Their hiding places become increasingly improvised, from a bench in the sauna to an abandoned room on the fourth floor. The matron notices evidence of his presence without alerting the investigators, while the telephone operator Bun-ok is interested in the reward for reporting a spy. Yeong-ro smuggles food and supplies upstairs and establishes a knock code for her visits. Those practical acts make trust feel earned, yet Soo-ho is secretly adapting a radio rather than simply using it to follow news of fellow students. The refuge is already serving purposes she has not agreed to.
The wider operation concerns Professor Han, whose connection to the political opposition makes him useful to people seeking to discredit that opposition. Soo-ho pressures him through information about his son in North Korea, drawing an academic into a scheme that turns family anxiety into leverage. Meanwhile, an intercepted message leads investigator Lee Gang-mu back to the dormitory. Soo-ho flees through a concealed passage and emerges into a confrontation with armed agents. Yeong-ro comes downstairs expecting the man she protected and instead finds herself held at gunpoint by him. This reversal changes the meaning of the same rooms and corridors: a place where friends helped a stranger recover becomes a place where that stranger can threaten them. Affection has not prevented him from using her vulnerability to survive.
Once the siege begins, Soo-ho and his comrades assemble hostages, trap entrances and force the authorities to negotiate. Gang-mu is wounded and kept inside, allowing Yeong-ro to offer first aid while also helping him conceal a tool that might loosen his restraints. She is frightened and angry, but the situation does not make her incapable of acting. Outside, officials disagree over how to contain a crisis that threatens their secret arrangement with the North. Orders change, and a proposed exit through the passage ends in gunfire rather than safety. Inside, every attempt to move a hostage or treat an injury becomes part of the balance of force. Negotiation sounds like an alternative to violence, yet the people making promises are also deciding whose survival is politically convenient.
Yeong-ro’s family connection makes the siege even harder to separate from the outside contest. Her father is the director of the security agency, while her brother is serving at sea when a confrontation with a North Korean vessel leaves him fatally injured. Hearing news of his death devastates her, and the public account implicates Soo-ho in a way shaped by political interests. Soo-ho brings back the scarf her brother gave her, a gesture that cannot undo either the loss or his own role in frightening her. Her father’s grief also becomes useful to colleagues thinking about electoral sympathy. The same death carries several meanings at once: a sister’s bereavement, a father’s loss, a captor’s guilt and another opportunity for people calculating how the public will respond.
The eventual alliance between Soo-ho and Gang-mu grows from recognizing that the official scheme may sacrifice both spies and hostages. Their cooperation changes who can be trusted inside the building without giving them complete control of events outside it. Escape remains fragile, and Soo-ho ultimately returns to help those still trapped rather than taking the chance to leave. He is shot while protecting Yeong-ro and dies, leaving her a recorded declaration of love. The officials behind the crisis later face imprisonment, but that consequence cannot restore the relationship the opening encounters seemed to promise. Yeong-ro listens to the tape while grieving him. The ending separates the survival of the young woman from the survival of the romance: she can live beyond the dormitory, carrying words from someone who could not come with her.

