Plot Summary: What Is 100 Days of Deception About?
Set in Gyeongseong, as Seoul was known under Japanese colonial rule, 100 Days of Deception (original title: 100일의 거짓말) centres on a woman who has survived on quick fingers and quicker wits. Known in the city’s underworld as its finest pickpocket, she longs for one thing above all: a life that truly belongs to her.
That chance comes at a steep price. To earn her freedom, she must slip inside the colonial administration, pose as someone she is not and lift classified information from under the noses of those in power. The mission demands total control over her identity, her cover story and her emotions. Things grow far more complicated when she is drawn to the son of the very man she has been sent to rob, and the boundary between performance and genuine feeling begins to blur.
Mixing period espionage with a slow-burning romance, the drama explores what it means to live behind a mask at a time when a single slip could expose everything. Its tagline captures the tension neatly: hide who you are, hide how you feel.
Review Guide: What Makes the Series Notable
This page offers an overview rather than a personal verdict, so here are the key facts to help you decide whether the show suits you.
- Cast: Kim You-jung leads as Lee Ga-kyung, alongside Jinyoung as Kim Tae-ung / Hideo Sato. The ensemble includes Kim Hyun-joo (Yoo So-ran), Lee Mu-saeng (Yoo Philip), Jin Sun-kyu (Shinichi Sato), Seo Jeong-yeon (Ryu Gwan-sil / Yanagi), Kiko Oi (Hanako Sato), Park Jung-yeon (Kim Myeong-nam), Lee Sun (Lee Young-bok) and Kim In-kwon (Han Cheol-ryong).
- Behind the camera: Directed by Yoo In-sik and written by Ryu Bo-ri. The two are credited as creators together with Kim Yoon-jin.
- Network: A South Korean production broadcast on tvN.
- Format: Season 1 runs for 16 episodes, each around 67 minutes long.
- Genre and themes: An action-adventure drama built around espionage, the Korean resistance and the Japanese occupation of Korea, with a romance woven through the spy plot.
Who Will Enjoy It
- Fans of period K-dramas set during the Japanese colonial era
- Viewers who like spy stories full of false identities and double lives
- Anyone drawn to romance that grows under pressure and secrecy
- Followers of Kim You-jung or Jinyoung
- Those who prefer longer, cinematic episodes with a dramatic tone
Where to Watch 100 Days of Deception in the US
In the United States, 100 Days of Deception is available to stream on Netflix, which requires a subscription. It is also included in the lower-cost Netflix Standard with Ads plan, which is still a paid subscription. The series is rated TV-14 in the US.
Trailer
Cast
Kim You-jungas Lee Ga-kyung16 episodesSee credits →
Jinyoungas Kim Tae-ung / Hideo Sato16 episodes
Kim Hyun-jooas Yoo So-ran16 episodes
Lee Mu-saengas Yoo Philip16 episodes
Jin Sun-kyuas Shinichi Sato16 episodes
Seo Jeong-yeonas Ryu Gwan-sil / Yanagi16 episodesSee credits →
Kiko Oias Hanako Sato16 episodes
Park Jung-yeonas Kim Myeong-nam16 episodes
Photo: TMDB
Episode guide
| Season | Episode | Original air date | |
|---|---|---|---|
| 1 | 1 | Aired | |
| 1 | 2 | Aired | |
| 1 | 3 | Aired | |
| 1 | 4 | Aired | |
| 1 | 5 | Aired | |
| 1 | 6 | Aired | |
| 1 | 7 | Upcoming | |
| 1 | 8 | Upcoming | |
| 1 | 9 | Upcoming | |
| 1 | 10 | Upcoming | |
| 1 | 11 | Upcoming | |
| 1 | 12 | Upcoming | |
| 1 | 13 | Upcoming | |
| 1 | 14 | Upcoming | |
| 1 | 15 | Upcoming | |
| 1 | 16 | Upcoming |
Dates are original broadcast dates in the country of origin (Korea/China). Official streaming platforms in your country may add episodes the same day or later.
FAQ
- How many episodes does 100 Days of Deception have?
- Season 1 has 16 episodes, each running approximately 67 minutes.
- When was the release date of 100 Days of Deception?
- The series premiered on October 10, 2026, on the South Korean network tvN.
- Where can I watch 100 Days of Deception legally in the US?
- It streams on Netflix in the US, both on the regular subscription plans and on the Netflix Standard with Ads plan.
- Who is in the cast of 100 Days of Deception?
- Kim You-jung stars as Lee Ga-kyung and Jinyoung plays Kim Tae-ung / Hideo Sato. They are joined by Kim Hyun-joo, Lee Mu-saeng, Jin Sun-kyu, Seo Jeong-yeon, Kiko Oi, Park Jung-yeon, Lee Sun and Kim In-kwon.
- What genre is 100 Days of Deception?
- It is a Korean action-adventure drama that combines espionage and romance, set during the Japanese occupation of Korea.
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