A ruthless, loyal, and authoritarian Swiss immigration police inspector tasked with investigating illegal border crossings in St. Gallen. After confirming Paul Grüninger's involvement in aiding refugees, Frei becomes convinced by Grüninger's moral conviction and begins to doubt the legitimacy of his own investigation.
Frei serves as the official investigator tasked with uncovering Grüninger's border violations.
Explore the full interactive character relationship map of The Grüninger File