9.3 (21,475 ratings)
Seo Jin Woo (Yoo Seung Ho) has hyperthymesia, allowing him to remember nearly everything in his life with perfect detail. When his father, who suffers from Alzheimer's, is falsely accused of murder, he utilizes his photographic memory to become a lawyer despite dropping out of high school. But in a cruel twist of fate, Jin Woo begins to develop early-onset Alzheimer’s, causing his once-perfect memory to fade. As he races against time, Jin Woo fights against a powerful, corrupt conglomerate and their ruthless lawyer, Nam Gyu Man (Namkoong Min), who’s deeply embedded in the original cover-up. Jin Woo partners with prosecutor Lee In Ah (Park Min Young), one of the few people who believes in his father’s innocence, as he hopes to clear his father’s name before he loses his own memory.