One mistake may lead to hundreds of tragedy. The day before Soo Min's big concert day, her college friends Won Ho, Seon Gi, Kim Hong, and Jin Sook gather to celebrate. Talking about their old memories and having fun seems like a happy moment. But soon Jin Sook starts a disturbing story about Soo Min being sexually abused by her dad and brother after her mom's death. All friends are shocked, and one by one they start to talk about Soo Min's secrets without realizing she is overhearing their conversation. It drives Soo Min to the irrevocable revenge.
One mistake may lead to hundreds of tragedy.