An old man’s precarious and tough journey to complete his lifetime revenge! Pil-ju, a retired soldier in his 80s with dementia, goes in search of the people he believes to be responsible for the death of his family in the past. With 5 names tattooed on his fingers, and pieces of his collapsing memories, Pil-ju tracks down his target and kills them one by one. A young innocent guy In-gyu unintentionally gets involved in his revenge and eventually becomes the prime suspect of the murder that Pil-ju committed. To prove his innocence, and to stop this old man’s rush, In-gyu can’t help but accompany Pil-ju’s revenge journey. Yet, Pil-ju’s plan comes closer to an end leaving one last person to execute… Before his memory is completely gone, can Pil-ju get his lifetime revenge done?