He Yuan, who repeatedly hit walls in job hunting, has no choice but to take a job as a night shift security guard at a funeral home, unexpectedly gaining the ability to hear the conversations of the deceased. Relying on stock and shop tips revealed by the dead, he turns his life around through investment, and also helps wandering souls fulfill their dying wishes and assists in solving cases. His online celebrity friend comes to the parlor for a live stream and stirs up trouble; he is misunderstood and sued by the family of the deceased, yet resolves the crisis through twists and turns. After the capital tycoon Shen Wanzhou passes away, he proposes to impart investment skills and entrusts him to apologize to his daughter. Stationed at the funeral home, He Yuan shuttles between Yin and Yang, making money while witnessing countless regrets.