Official Trailer for Netflix’s 'The Truthers'

Official trailer for Netflix's Spanish psychological thriller The Truthers, in which Ruth returns home after her mother's mysterious death and begins to suspect her conspiracy-obsessed father Martín,

Netflix has released the official trailer for the Spanish psychological thriller 'The Truthers (original title: Los creyentes)'. The trailer opens with Ruth, a 30-year-old woman who has been estranged from her family for a long time, returning to her childhood home after her mother’s suspicious death. There, Ruth reunites with her father Martín, who has become obsessed with ominous conspiracy theories since retiring. As she watches his strange behavior, her initial, faint suspicions gradually harden into certainty. Eventually, after a psychological game of cat and mouse in which the two push each other to the limit, they reach an irreversible point.

The film is directed by Roger Gual, with a screenplay by Carlos Montero and Darío Madrona, the creators of Netflix’s hit series 'Elite'. Martín, the father, is played by veteran Spanish actor José Coronado, while Ruth, his daughter, is played by Stephanie Magnin; Fanny Gautier and Alberto Olmo also appear.

Filming took place in Asturias and Madrid, Spain, as well as on location in Berlin. Exploring themes of paranoia, loss, and family secrets through the contemporary premise of a family consumed by conspiracy theories, the film has a runtime of 106 minutes and was released worldwide on Netflix on July 24, 2026.