Lin Kai, a college graduate, accidentally fell into the spirit world during a night outing and was involved in a bizarre adventure where humans and ghosts were mixed. When he first arrived, he accidentally met A Hun, whose life experience was a mystery, and the mysterious girl Bai Xiaoyan in the ghost market. In the process of trying their best to escape from the spirit world and return to reality, the three of them became a mutual aid team, fighting wits and courage with all kinds of ghosts and monsters, and got involved in the grudge and conspiracy between the manager of the spirit world "Mrs. Yan" and the villain "Black-Eyed Ghost". Lin Kai gradually transformed from an ordinary and timid young man, through crisis after crisis and the support of his peers, he learned to face his fear and understand the boundary between life and death. While looking for a way back, he also unravels a thousand-year entanglement in the spiritual world, as well as his true courage and true heart. In the end, they defeated the evil ghost, restored order in the spiritual world, and gained a sincere friendship that spanned life and death. Lin Kai chose to stay in the spirit world to protect his new friends and usher in a new life.
