In Lembridge, during World War II, the inmate Stephen Neale (Ray Milland) has just been released from the Lembridge Asylum after two years of compulsory confinement. While waiting for the train to London, Stephen visits a charity fair promoted by The Mothers of Free Nations and the clairvoyant Mrs. Bellane gives a tip to him and he receives a cake as a gift.
In the train, Stephen shares his cabin with a blind man. Out of the blue, the man steals the cake and run through the field with Stephen chasing him. However, he hides in a house that is bombed by the airplanes and dies.
In London, Stephen investigates The Mothers of Free Nations organization and he meets the siblings Carla Hilfe (Marjorie Reynolds) and Willi Hilfe (Carl Esmond) and Stephen goes with Willi to the house of Mrs. Bellane (Hillary Brooke), who is a different woman from the fair. She invites them to participate of a séance and a man is murdered. Stephen is accused and escapes, and Carla finds a hideout to him. Sooner Stephen finds that he is a pawn in a Nazi spy ring and he does not know who is trustworthy.
"Ministry of Fear" is film-noir of espionage by Fritz Lang with a man getting involved in a spy ring in London during World War II. The plot is only reasonable and the motivation for Stephen Neale to get further and further in his investigation is not clear since he had been advised to avoid problems with the police. Anyway the film is entertaining and for fans of Fritz Lang, it is worthwhile watching it. My vote is seven.
Title (Brazil): "Quando Desceram as Trevas" ("When the Darkness Has Fallen Down")