A failed actor switches identities with a stranger at a bath house thinking it is his way out of his life of misery but only to find himself filling the shoes of an elite assassin.
Key of Life is a 2012 Japanese comedy film directed by Kenji Uchida. The film opened in Japan on September 15, 2012. The movie's theme song "Tenbyō no Shikumi" (点描のしくみ) was written and performed by Kazuya Yoshii. The movie was remade in Korean in 2016 as Luck Key.