A Life-Changing Turn

"Did I hit a man?"
With a mayor father, and one foot in Hankuk University, high school student Jo Soo-Ah is living the high life. One mistake leads to a hit-and-run. "It's okay because no one saw it", she thinks. But her life is slowly cracking down when the messages of M, an eyewitness who seemed to know everything, flying towards her.