A man who has been given a terminal diagnosis reflects on his past life, filled with regrets over days that never went his way, endlessly questioning his existence. Determined to relive his final days, he chooses a woman he meets in town and resolves to leave a part of himself within her. Desperately, he strives to leave behind not just a memory in her heart, but a proof of his life. Meanwhile, the woman's efforts to understand and accept him add profound depth to the story.