Luck-Key

Luck-Key centers on a meticulous assassin who suffers a blow to the head in a sauna and wakes up with amnesia. A down on his luck actor happens to swap locker keys with him, and the two men find their lives swapped as a result. The hit man suddenly appears on a television screen as a confident action hero, while the actor enjoys a surge of glamour and danger that changes his fortunes. As memory flickers back in fits and starts, the pair uncover pieces of their true pasts and the consequences of their swapped existence. The film blends tight action with quick witted humor, building a twist free ride that keeps surprises around every corner for both together now.

Luck-Key is a 2016 Korean action comedy directed by Lee Kae-byeok. It adapts Kenji Uchida's Japanese film Key of Life for a Korean audience, with Uchida and Jang Yoon-mi credited as creators, and it nods carefully to the original.

Among fans of body swap comedies Luck-Key stands out for its brisk tone and integration of crime tropes with light hearted humor. The film nods to television stardom and the lure of fame, offering an accessible twist on identity control that resonates with viewers who enjoy fast, witty setups.

Critics noted the movie's momentum and the chemistry between the leads, which keeps the premise buoyant even as it treads familiar ground. Its themes explore luck, self reinvention, and the pull of show business, asking how to lose sight of who you are when a new persona shines globally.

Box office figures for Luck-Key are not widely reported, but the film premiered in 2016 under director Lee Kae-byeok with a strong ensemble cast led by Yoo Hai-jin and Lee Joon. It played to audiences drawn by its mix of crime and comedy that linger after viewing.