Detective Kien: The Headless Horror 2025

The village is haunted by decapitations and a water wraith

In a remote Vietnamese village, eight decapitated bodies appear in or near the lake over time, leaving the community terrified. The villagers believe a supernatural guardian, the water wraith, is responsible for the killings. The first killings occur five years before Nga's disappearance, setting a dark precedent for what follows.

Nga vanishes; Moon seeks truth

Five years after the first killings, Nga disappears without a trace. Moon, Nga's aunt by adoption, is distraught and refuses to accept the water wraith as an explanation. She seeks Detective Kien, who previously arrested Moon's corrupt husband years earlier.

Kien arrives at Nga's home; clues emerge

Kien arrives to begin the investigation and questions Nga's last known movements. He learns that a thief broke into Nga's room the night she disappeared and shattered a ceramic plate, signaling a burglary rather than a straightforward kidnapping. The clue hints at human involvement rather than purely supernatural forces.

A shoe and seeds point to a clue

At the lake, a villager finds Nga's shoe bearing seeds from the xanthium plant. The plant's presence links Nga's disappearance to a real object and to clues found near water. This discovery shifts the investigation from superstition toward potential human motives.

Shaman points to the xanthium near the waterfall

Kien visits the village shaman, who explains that xanthium grows near the waterfall just outside the village. This ties the plant clue to a specific location and sets the next investigative target. The shaman's information adds a cultural layer to the mystery.

Blood traces lead to the waterfall

Kien goes to the waterfall with Moon and discovers traces of blood, deepening the mystery surrounding Nga's fate. The sign points investigators toward a confrontation at the waterfall where personal relationships intersect with danger. The physical clue reinforces that Nga's disappearance involved violence.

Moon reveals Nga's family history

Moon tells Kien about Nga's complex family ties: Nga's biological mother abandoned Moon; Nga grew up seeing Moon as her mother and forgiving Moon when she returned. This backstory explains Nga's emotional bonds and the stakes of the investigation. The revelation adds motive and vulnerability to the case.

Kien has a vision of the water wraith

As clues accumulate, Kien experiences a vision of Nga being taken by the water wraith, with the imagined severed head as a grim symbol. The vision intensifies his resolve to uncover the truth beyond superstition. This moment foreshadows how perception shapes the investigation.

Tuyet is questioned; links to Thac and the plate

Kien visits Tuyet, the district chief's daughter, the last person known to interact with Nga. He uncovers a connection between Nga's broken plate and Tuyet's fiancé, Thac, hinting at romantic and social tensions behind Nga's disappearance. The investigation expands from a missing person case to a web of relationships.

Thac, Tuyet, and Nga: love and family pressure

Kien learns Nga and Thac were lovers, but Thac could not marry Nga because of an engagement to Tuyet. In a family meeting, Thac proposes making Nga his second wife, a notion Tuyet's family immediately rejects. The confrontation deepens the conflict surrounding Nga and hints at possible motives.

Pregnancy rumors and Tuyet's arrest

Back at Tuyet and Thac's house, Nga is accused of being pregnant, a claim Thac denies. Soon after, Tuyet is arrested on suspicion of harming Nga, and she admits that she accidentally struck Nga near the waterfall. The tension between the families escalates toward violence.

Dong the thief, and a deeper conspiracy emerges

Moon's plan to catch the thief leads to Dong, who is revealed as the man who stole Nga's plate. Dong's interrogation points to Vinh and Vuong, revealing a plot to separate Thac and Nga for money through manipulation. Kien then suspects Tuyet and detains her, highlighting a web of deceit extending beyond one crime.

The dark chain: betrayal, murder, and a secret cave

A sequence of confessions reveals a plan to kill Nga and silence her. Vuong enlists Dong to murder Nga for money, while Tuyet's involvement surfaces through a flashback showing Tuyet hitting Nga near the waterfall. Dong ultimately kills Mui, Vuong is dragged toward the truth, and a hidden cave becomes a key clue. This combination of betrayals drives the investigation toward the shaman's role.

Nga escapes and Dong is killed

Nga uses the forest as cover to escape while Dong chases her. Kien blocks Dong and a fight ensues, ending with Dong's death at Kien's hands. Nga is rescued alongside Moon, and Vuong is knocked unconscious and tied up. The immediate threat to Nga is removed, but the mystery still persists.