The film tells the story of a fictional trial about the murder of French producer Sophie Toscan du Plantier, exploring the details of the case and the mysteries surrounding it.

Vitoria, 2022. Former inspector and criminal profiler Unai López de Ayala, alias Kraken, receives an anonymous call that will change what he thinks he knows about his family's past.

Years have passed since his last disastrous “mission”, but José Luis Torrente is convinced that Spain is going through its most critical moment… and that only he can save it.