One day, a high school girl Kyung Min goes missing. She seemed to jump off a bridge to her death, but without a body, or a suicide note, no conclusion can be drawn. People question Yeong Hee who was the last person to be seen with Kyung Min on the night of her disappearance and start suspecting her of instigating Kyung Min’s death. While Yeong Hee keeps insisting on her innocence, no one believes her. When Kyung Min’s body finally is found, even her friends turn back from her one by one. To prove herself innocent, Yeong Hee makes the unexpected decision.