A mother lives quietly with her twenty-eight-year-old son, Do-joon, providing herbs and acupuncture to neighbors. One day, a girl is brutally murdered, and Do-joon is charged with the killing. Now, it's his mother's call whether to prove him innocent or to leave him imprisoned.

Ji-so, a young girl who doesn't have a house because of her bankrupted dad. In order to get money to buy a house she plan to steals wealthy people's dogs to earn reward money when she returns them.