Una joven archivera es asesinada en el archivo municipal de Vigàta, aunque es su lugar de trabajo, nadie entiende por qué estaba allí.

A Swedish film troupe arrives to shoot a period drama in Vigata. Augello immediately takes a shine to the production's female lead. When Montalbano intervenes in a case of bullying at a local school, a town resident asks the inspector to unearth the story behind a collection of mysterious home movies found in his dead father's attic.