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Oh! While You Were Sleeping

오! 당신이 잠든 사이

Official English Title

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SOURCE

original

SETTING

Korea

BOOK

original

A missing patient on Christmas Eve

Korean Premiere

2005

Korean Premiere Theatre

Yeonwoo Small Theater, Seoul

Further Korean run reference:
https://www.themusical.co.kr/Musical/Detail?num=1304
The Musical search cue — “오! 당신이 잠든 사이”

Summary

When a patient vanishes from a charity hospital on Christmas Eve, the search uncovers the intertwined wounds, secrets, and compassion of its residents and staff.

Origin & Development

Oh! While You Were Sleeping was created as a Korean original musical and premiered in 2006, with its first run opening on September 1, 2006 at Art Theater Namu and Water in Daehangno. The work was developed and produced by Yeonwoo Stage (Yeonwoo Theatre Company), one of Korea’s established theatre groups, and quickly gained attention for its accessible tone, ensemble structure, and appeal to a wide audience. Since its premiere, the musical has been staged continuously with rotating casts, becoming a staple of Daehangno repertory culture.

Partial Synopsis

Set on Christmas Eve in a free hospital, the musical follows patients and staff whose lives intersect over the course of a single night. At the center is Byeong-ho, a patient suffering from paralysis and memory loss, whose forgotten past gradually surfaces through encounters with others. The story blends humor and sentiment, focusing on loneliness, regret, compassion, and healing. Musically and tonally, the work emphasizes warmth and emotional connection rather than spectacle, positioning itself as a healing ensemble musical.

Oh! While You Were Sleeping

2017

2017-11-28

to

2017-11-29

Country:

Hong Kong

City:

Hong Kong

Production Type:

Reading / Showcase

Language:

Korean

Venue:

Y Theatre, Youth Square

Presented at the 2017 K-Musical Roadshow, organized by the Korea Arts Management Service with support from the Ministry of Culture, Sports and Tourism and the Korean Cultural Office in Hong Kong, which showcased six Korean original musicals to international presenters and industry professionals. The non-commercial appearance positioned the musical within Korea's broader strategy for introducing original works to overseas markets.

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Last update: October 10, 2026

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