The Traitors Hungary.

The Traitors - Murder at the Castle: A ruthless game of trust, fear, strategy, mental warfare, and total deception. The groundbreaking crime-reality’s nerve-wracking plot is co-written by life and the participants themselves, and like in any good crime story, the big and final truth will only be revealed on the last pages! 22 celebrities head to a Tudor-style castle to take part in a nerve-wracking challenge: they must survive a "series of murders" to win a grand prize of up to 20 million forints. The "murderers" are hiding among the players—they are the Traitors, who mercilessly kill their Innocent companions under the cover of night. The Innocents’ task is to expose the Traitors and, if they fall under suspicion, convince their companions of their own innocence.