Mal-soon is poor 72-years-old granny and enjoys her single life. One day, Gong-ju and her baby sister appear in front of Mal-soon. Gong-ju introduces herself as Mal-soon's granddaughter. Since then, Mal-soon's peaceful life changes.
A tragic accident leaves an ambitious prosecutor with the mind of a child – forcing him and his mother to embark on a journey to heal their relationship.
