最壞的女人/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.