La última luciérnaga

Aia Oiasso, a police officer in San Sebastián, discovers she's pregnant after a casual encounter. While trying to decide what to do, she witnesses the brutal stabbing of a woman in the street during the city's Christmas lights switch-on. This crime triggers a seemingly endless spiral of violence, and Aia becomes entangled in an increasingly dark investigation. She's forced to work with her brother Martín, also a police officer, with whom she has a strained relationship. Together, they uncover that behind the attack lies a clandestine organization that committed atrocities years ago, but has resurfaced, seeking revenge.