: Elena Blanco is a complex inspector with a penchant for karaoke and a haunting past that drives her obsessive search for justice.
: The series is based on the best-selling novel by Carmen Mola (a pseudonym for three male authors: Jorge Díaz, Agustín Martínez, and Antonio Mercero).
: Known for its gritty, "Spanish Noir" aesthetic, the show explores themes of marginalization and ancient rituals within modern Madrid.
: The case remains deeply intertwined with the disappearance of Elena's son, Lucas, years prior.
In the season finale, Inspector Elena Blanco and her team finally uncover the truth behind the macabre ritualistic murders of the Casado sisters.
: The investigation leads to the realization that the murders are part of a long-standing, dark tradition.