Based on the Catalan format Merlí by Hector Lozano, produced by Veranda for TV3 Lagardère Studios Distribution. Dante Balestra is a philosophy teacher who, after many years away, returns to Rome to care for his son Simone. Charming and unconventional, the teacher takes a class at the Leonardo Da Vinci High School, where he applies his unconventional teaching methods and develops a very special relationship with his students, including Simone. But his approach quickly leads to his personal and professional lives becoming confused, and the return from the past of Anita, a former flame of his and now the mother of Manuel, the class "black sheep," makes things even more complicated.