Yeong-deuk and Jeong-sun and engaged. Yeong-deuk comes back home after completing his studies and meets the wrong kind of friends who revel in liquor and women.

Master Maeng is very proud that an influential family will soon be his esteemed in-laws when his loving daughter, Mi-yeon, marries their son. A few days before the wedding Maeng hears a rumor that his future son-in-law has a cripple leg. Regretting that he can't give his lovely daughter to a cripple, he decides to marry his maid to him instead. Unexpectedly the future son-in-law shows up at the wedding hall and he is not a cripple, but a healthy and handsome youth. Feeling embarrassed, there is no way but to wed the maid to him. The Wedding Day is a recreation of A Happy Day of Jinsa Maeng, a comical play by Oh Yeong Jin. The first Korean film to win an international film award, the Best Comedy Award at the 1957 edition of the Asian Film Festival (now Asia Pacific Film Festival).