A time-traveler's journey through Tongliao intertwines with a tragic love story, leading to a chilling murder mystery and a moral dilemma that spans centuries....

When a brutal murder rocks Tongliao on the eve of April 12, a young detective must unravel the city's darkest secrets, confronting his own fears and the chilling reality of a killer who seems to be one step ahead....

When a young woman stumbles upon a cryptic message in the sand of Tongliao, she triggers a series of events that unravel a decades-old mystery, leading her into a harrowing confrontation with an unseen killer....

In the heart of the tumultuous city of Tongliao, a dark secret is about to be unraveled, shattering the lives of those closest to it. A whirlwind of betrayal and murder looms, with the fate of an innocent caught in its eye of terror....