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Jeong-hye gives a birth to a baby boy in the prison. Her and other inmates create a women's choir to compete in the national choir contest, to meet and greet their families and loving ones.
Jong-pil is a 30-year-old part-timer who works every time while preparing for full-time work. To blow off stress he chats on his smart phone where phishing scams await. One day he witnesses something he shouldn't have. What will he do?