Koldo SerraKoldo Serra is a Spanish film director and screenwriter, born in Bilbao.WWW Official Site𝕏 KoldoSerraFilmographyDirectorEl Tren [de la bruja] The Backwoods Gominolas TV series El Comisario TV series Es [bello vivir] TVMuchachada nui TV series Guernica 70 Binladens Money Heist TV seriesScreenwriterAmor de madre El Tren de la bruja The Backwoods ASD. [Alma sin dueño] Muchachada nui TV series