Eun Soo Hyun is a professor of psychology and a famous writer, but her life has been turned upside down. Her young son dies tragically. To make matters worse, the person responsible for her son’s death is not brought to justice. Eun Soo Hyun loses all hope in this world. She decides to take matters into her own hands and punish the person responsible for her son’s death. Her life is still filled with pain and despair. Somehow, Eun Soo Hyun becomes involved with other people suffering from pain similar to her own and solves their mysterious cases. In this way, they slowly begin to heal.