Milagros Mumenthaler was born in Argentina in 1977. She left this country very early for Switzerland, where she grew up. She directed four short films, selected and awarded in many festivals. In 2011, she directed Abrir puertas y ventanas, her first feature film, which was selected at the Cinéfondation, a residence of the Cannes Film Festival and which received, among others, the Golden Leopard and the Leopard of the Best Actress at the Locarno Film Festival, as well as the Astor de Oro at the Mar del Plata Festival.His second film,"The idea of a lago" is presented in competition at the Locarno, Busan, San Sebastian and Rotterdam Festivals.