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.