Stealth: Lionel Baier is a young gay author living in Lausanne, the French-speaking region of Switzerland. He works for a Swiss radio station and lives openly with his loving boyfriend, Serge. His relationship is accepted by both his parents and his sister, Lucie. Lionel is happy and carefree until his world is turned upside down one day when he discovers that his great grandfather was Polish. His unknown heritage sparks an amusing journey of self discovery.