She Devil.

A 28-year-old singer Woen, who has a crush on a beautiful girl in his village named Ploy. When Woen and Ploy's parents arrange the couple's marriage, Woen is thrilled. However, on the night of their wedding, Ploy suddenly changes into a different and decidedly scary person. Rather than run away, Woen decides to do everything he can to bring the real Ploy back.