One billionaire. One Euro. One secret that could kill. When eccentric billionaire Johan Paepe is found dead in his Brussels mansion, the reading of his will turns into a high-stakes psychological game. Notary Benjamin De Walters is tasked with a bizarre addendum: a billion-euro fortune has been hidden for a decade, and the murderous secret heir is sitting right in his office amongst Johan's other next of kin. As Detective Van Der smet deploys cutting-edge AI facial recognition to hunt for a motive among the family members, Ben must rely on his father's old-world lessons in observation and human nature. In a climate of digital surveillance and political tension, can a notary's intuition outpace a police algorithm? A contemporary tribute to the Golden Age of detective fiction, 'Who Wants To Be A Billionaire' explores the thin line between the logic of technology and the chaotic mess of family ties.