Sun Qiyue, a fresh graduate, politely accepts an old fountain pen received on the day of a condolence visit. Since then, he has been able to see blurry phantoms in different places and hear faint, strange noises by his ear. Following these fragmented clues, he gradually touches upon multiple past events that were deliberately buried. As layer after layer of veil is lifted, Sun Qiyue is shocked to discover that all the covered-up tragedies point in the exact same direction.