# While You Were Sleeping (2017) — Celluloid TV fact sheet

Source: https://celluloidscore.com/shows/while-you-were-sleeping/
Last reviewed: 2026-08-31

| Field | Value |
|-------|-------|
| Celluloid Score | 82% |
| Celluloid Editorial Rating | 84/100 |
| Audience Snapshot | 90% |
| Metascore | 72/100 |
| IMDb | 8.3/10 |
| Fan Score | 87% |
| Creator | Park Hye-ryun |
| Platform | Viki |
| Genres | Fantasy, Romance, Legal Drama, Thriller |
| Seasons | 1 (32 episodes) |
| Language | Korean |
| Country | South Korea |

## Quick answer

While You Were Sleeping (2017) is a Fantasy, Romance, Legal Drama, Thriller series created by Park Hye-ryun, streaming on Viki. It holds a 82% Celluloid Score — Recommended — from Celluloid editorial (84%), Metascore (72/100), IMDb (8.3/10), TMDB fan (87%) across 1 season. Audience snapshot (not in the composite): 90%.

## Celluloid verdict

Park Hye-ryun's precognition premise could easily have collapsed into gimmick, but the show keeps its stakes human — Lee Jong-suk and Bae Suzy make the moral weight of foreknowledge land, and the courtroom cases give the fantasy real teeth.

## Synopsis

Nam Hong-joo wakes from dreams that show her disasters before they happen, and quickly learns that knowing the future is a burden rather than a gift. When a rookie prosecutor moves in across the street and starts dreaming the same warnings, and a young patrol officer joins the pattern, the three begin racing to rewrite outcomes they were only meant to witness — with a predatory lawyer always one step ahead of them.

## Cast

Lee Jong-suk, Bae Suzy, Lee Sang-yeob, Jung Hae-in, Ko Sung-hee

## Critic reviews on Celluloid: 1

## Most searched questions

**Is While You Were Sleeping worth watching?**
Yes — While You Were Sleeping earns a 82% Celluloid Score (Recommended), from editorial 84%, Metascore 72/100, IMDb 8.3/10, TMDB fan 87%. Audience snapshot is separate (90%). Park Hye-ryun's precognition premise could easily have collapsed into gimmick, but the show keeps its stakes human — Lee Jong-suk and Bae Suzy make the moral weight of foreknowledge land, and the courtroom cases give the fantasy real teeth.

**Why is While You Were Sleeping so highly rated?**
While You Were Sleeping scores 82% from four inputs: Celluloid editorial 84/100, Metacritic 72/100, IMDb 8.3/10 and TMDB fan rating 87%. The separate audience snapshot is 90%. Park Hye-ryun's precognition premise could easily have collapsed into gimmick, but the show keeps its stakes human — Lee Jong-suk and Bae Suzy make the moral weight of foreknowledge land, and the courtroom cases give the fantasy real teeth. See the full breakdown on the While You Were Sleeping series page.

**Is While You Were Sleeping on Netflix?**
No — While You Were Sleeping is not on Netflix. It streams on Viki, and on Celluloid it is catalogued under Viki. Streaming rights rotate by country, so confirm in your region before subscribing.

**Is While You Were Sleeping on Viki?**
Yes — While You Were Sleeping is available on Viki in many regions (catalogued under Viki on Celluloid). Rights differ by country; confirm in the Viki app or the where-to-watch notes.

**What year did While You Were Sleeping come out?**
While You Were Sleeping first aired in 2017 (2017). Created by Park Hye-ryun; it streams on Viki today.

**How many seasons of While You Were Sleeping are there?**
While You Were Sleeping has 1 season across 32 episodes (2017). Status: ended / complete.

**How long does it take to watch While You Were Sleeping?**
At roughly 40–50 minutes per episode, While You Were Sleeping’s 32 episodes take roughly 24 hours of runtime (plus credits). Binge pace depends on season breaks.

**Where can I watch While You Were Sleeping?**
While You Were Sleeping streams on Viki in supported regions. On Celluloid it is catalogued under Viki. Rights rotate — confirm in your country on the platform app.

**Who is in the cast of While You Were Sleeping?**
While You Were Sleeping stars Lee Jong-suk, Bae Suzy, Lee Sang-yeob, Jung Hae-in, Ko Sung-hee. Created by Park Hye-ryun.

**How many episodes are in While You Were Sleeping?**
While You Were Sleeping has 32 episodes across 1 season (2017).

**What is While You Were Sleeping about?**
Nam Hong-joo wakes from dreams that show her disasters before they happen, and quickly learns that knowing the future is a burden rather than a gift. When a rookie prosecutor moves in across the street and starts dreaming the same warnings, and a young patrol officer joins the pattern, the three begin racing to rewrite outcomes they were only meant to witness — with a predatory lawyer always one step ahead of them.

**Who created While You Were Sleeping?**
While You Were Sleeping was created by Park Hye-ryun. It is a fantasy, romance, legal drama series from South Korea, primarily in Korean.

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Reviewed and scored by Celluloid · Editor: Kaiser Khan (https://celluloidscore.com/author/kaiser-khan/)

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