: FBI agent Sean Rogers is tasked with verifying Martino's identity. The central question—"Who?"—refers to whether the man under the mask is the real scientist, a brainwashed asset, or a Soviet imposter meant to infiltrate the secret project. Principal Cast and Crew The film's production was a British-American collaboration. Who? (1974) - Full cast & crew - IMDb

: He is returned to the West as a cyborg, with his face entirely replaced by a silver metal mask and one arm replaced by a prosthetic.

The 1974 science fiction thriller (also released under titles such as The Man with the Steel Mask and Roboman ) is a Cold War espionage film that explores deep themes of identity and humanity through a cybernetic lens. Directed by Jack Gold, the film is based on the 1958 novel of the same name by Algis Budrys. Core Narrative & Conflict

: Captured by the East German military, Martino undergoes six months of radical medical treatment under the supervision of Soviet Colonel Azarin.

The story centers on , an American scientist working on a top-secret project, who is severely injured in a car crash near the East German border.