该电影由金宗宽执导，韩艺璃、岩濑亮、李熙俊、权律等主演，于2016年上映。在89分钟的叙事中，《最坏的一天》（又名：最坏的女人、最糟糕的一天、Worst Woman）Eun-hee is an actress whose acting is poor, but she also plays in her real life. Her performance full of lies helps her feel she creates different personalities each time she dates separate men. Eventually a pack of her lies is tangled up and everything is about to be messed up. Ryohei, a Japanese writer, visits Seoul for his book launch party. He often writes a story pushing characters into a corner and then makes it be a tragedy. He meets Eun-hee by chance, who is in a trouble, just like in his novels.