Julia, Tobias, and their eleven-year-old daughter Marielle are an idyllic family. However, one day, after being slapped by a classmate at school, Marielle gains the unusual power to telepathically hear and see her parents' every move. How will the couple's relationship change when their child can hear and see through walls? Desperate parents take all measures to take away their daughter's superpower. Critics call What Marielle Knows the funniest German comedy since Toni Erdmann, as it accurately debunks the myths of modern families and the illusions of privacy.
Frédéric Hambalek is a German director and screenwriter. His debut feature, Model Olympia (2020), premiered at the Black Nights Film Festival in Tallinn, while his latest work, What Marielle Knows (2025), was selected for the competition at the Berlin Film Festival and has since toured successfully across international festivals. Deeply engaged with the complexities of family dynamics, Hambalek also lends his pen to screenplays for television films.