Nazareno Cruz is the seventh son of a couple living in a high mountain village. According to a myth, a seventh son will become a wolf on nights of the full moon but this doesn't occur to him. When he's older, he meets the Devil, who offers him the wealth of the world if he turns his back on his newfound love, but if he refuses, he'll become a wolf.
Juan José Camero
as Nazareno Cruz
Marina Magali
as Griselda
Alfredo Alcón
as El poderoso
Lautaro Murúa
as Julián
Nora Cullen
as La Lechiguana
Elcira Olivera Garcés
as Damiana
Saúl Jarlip
as El viejo hombre Pancho
Juanita Lara
as Fidelia
