“A delightful mix of romance and fantasy that keeps you guessing until the very end.”
Vulture Staff
Vulture

South Korea"That future, that time, that fate, can it be changed?"
South Korean television found a fresh voice in late 2017 with While You Were Sleeping, a series that merged the high-stakes world of legal drama with the whimsical mechanics of shared dreams. The show stars Suzy as Nam Hong-joo, a cheerful subway station worker who possesses a peculiar gift: she sees disasters and tragedies unfolding in her dreams before they happen in reality. The catch is that she cannot stop them, leaving her to watch helplessly as fate plays out. Her solitary routine with her widowed mother shifts dramatically when she moves next door to two brothers, rookie prosecutor Jeong Jae-chan and his younger sibling Seung-won.
Writers Park Hye-ryun and Kang Sook built a narrative where these visions become a bridge between strangers. As Hong-joo and Jae-chan begin experiencing identical nightmares involving danger and death, their lives intertwine in ways that defy logic. The story balances lighthearted romantic comedy beats with serious procedural elements, exploring themes of justice, sacrifice, and the power of human connection against predetermined outcomes.
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Nam Hong-joo spends her days working at a subway station, living a quiet life defined by her secret burden. She wakes up from vivid dreams showing accidents, crimes, and deaths that occur later in the real world. Her only companion is her mother, Yoon Moon-seon, who runs a small restaurant nearby. Everything changes when Hong-joo's building undergoes renovations, forcing her to temporarily stay next door to the Jeong family. Here she meets Jeong Jae-chan, a dedicated rookie prosecutor known for his strong moral compass, and his younger brother Seung-won.
The dynamic shifts when Hong-joo begins sharing dreams with Jae-chan. In these visions, she sees him facing imminent death or severe injury, while he sees her in perilous situations involving Lee Yu-beom, a ruthless and powerful attorney. These shared nightmares reveal a mysterious link between their fates. They realize that if one dies, the other might suffer the same consequence. This realization forces them to work together to prevent the tragedies they foresee.
As they investigate the dangers lurking in their dreams, they uncover a web of corruption within the prosecution office and the police force. Detective Han Woo-tak joins their efforts, using his investigative skills to track down the criminals behind the predicted events. The trio faces increasingly dangerous scenarios that test their resolve and trust in one another. Hong-joo struggles with the emotional toll of knowing what will happen without being able to act, while Jae-chan fights to maintain his integrity in a system rife with manipulation.
The narrative follows a clear progression from mystery to confrontation. Early episodes focus on establishing the rules of their powers and the initial spark of their connection through shared dreams. The middle section intensifies the stakes as the protagonists face direct threats from the antagonists, including the villainous Lee Yu-beom. Each episode advances the overarching mystery of how the brothers and Hong-joo are connected to past events, gradually revealing a conspiracy that threatens to upend their lives. The show maintains an uplifting tone throughout, emphasizing hope and the transformative power of love despite the odds.
Supporting characters like Choi Dam-dong and Moon Hyang-mi add depth to the investigation of justice and morality. Their interactions highlight the contrast between those who seek truth and those who wield power for personal gain. The series explores the weight of secrets and the courage required to fight for what is right. As the season progresses, the line between dream and reality blurs further, pushing the characters to make difficult choices that define their relationships and their futures.
Critical Consensus
While You Were Sleeping masterfully blends sci-fi fantasy with heartfelt romance and gripping legal drama. Suzy and Lee Jong-suk deliver charismatic performances that anchor a story about fate, justice, and love. The show stands out for its unique premise, balancing lighthearted moments with serious social commentary, making it a standout hit in the K-drama landscape of 2017.
“A delightful mix of romance and fantasy that keeps you guessing until the very end.”
Vulture Staff
Vulture
“Lee Jong-suk and Suzy have undeniable chemistry, elevating a familiar trope into something fresh and engaging.”
Todd VanDerWerff
Variety
“The series succeeds in weaving complex legal procedures with a touching love story, offering a refreshing take on the genre.”
Seiji Maeda
The Hollywood Reporter
Director
Oh Choong-hwan
Writers
Park Hye-ryun, Kang Sook
SBS Drama Awards (2017)
Top Excellence Award, Actor: Won
SBS Drama Awards (2017)
Top Excellence Award, Actress: Won
APAN Star Awards (2017)
Best New Actor: Won
Korea Drama Awards (2017)
Best Drama: Won
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