Salt of the Earth (1954) is an American drama film written by Michael Wilson, directed by Herbert J. Biberman, and produced by Paul Jarrico. All had been blacklisted by the Hollywood establishment due to their involvement in socialist politics. The movie became a historical phenomenon and has a cult following due to how the United States establishment (politicians, journalists, studio executives, and other trade unions) dealt with the film. Salt of the Earth is one of the first pictures to advance the feminist social and political point-of-view. In 1950–1951, in the fictional village of Zinc Town, New Mexico, the drama tells the story of a long and difficult strike led by Mexican-American and Anglo miners against the Empire Zinc Company. The film shows how the miners (the union men and their wives), the company, and the police, react during the strike. In neorealist style the producers and director used actual miners and their families as actors in the film.

A psychic who can read minds picks up the thoughts of a murderer in the audience and soon becomes a victim. An English pianist gets involved in solving the murders, but finds many of his avenues of inquiry cut off by new murders, and he begins to wonder how the murderer can track his movements so closely

Durante una conferencia sobre parapsicología, Helga Hullmann, una vidente alemana, advierte una presencia inquietante en la sala. Alguien, oculto entre los espectadores, planea un delito sanguinario. Esa misma noche, Helga vuelve a su casa y es brutalmente asesinada.