I, {Chen Yan}, am a criminal police officer who has solved many strange cases. However, when I was investigating the "Ghost Serial Case", I witnessed my partner {Gu Mingyuan} fall to his death from a building. I also fell into a "reincarnation of death" - every time I die, I will go back to the 24 hours before the crime. In order to find out the mastermind behind the scenes, I used my backtracking ability to dismantle clues, but I met the cold forensic doctor {Su Qinghan}. She seemed to know the secret of reincarnation and was related to the past of my family's death. As the investigation deepened, I discovered that Gu Mingyuan's "death" was a disguise. He was darkened by old family grudges, and there was a more dangerous abyss hidden behind Su Qinghan's mysterious identity. I chased the murderer repeatedly in reincarnation, and every time I got closer to the truth, I had to face more cruel betrayals and choices.
