The "Human" Factor is a 1975 suspense-thriller film directed by Edward Dmytryk and starring George Kennedy, John Mills, Raf Vallone, Rita Tushingham, Barry Sullivan, and Haydee Politoff.

Another American family is killed under similar circumstances, so Kinsdale travels to the crime scene using his stolen credentials, where he meets an Embassy worker named George Edmonds.

After a few drinks at a local bar, Edmonds discloses that the U.S. President received a letter several weeks ago demanding the release of a group of political prisoners and $10 million, or every three days an American family living in Italy will be murdered.

Claiming he is surveying the effectiveness of the classified advertisements, Kinsdale learns that the Gerardi family has just made an appointment to talk to a prospective housecleaner, Miss Pidgeon.

CIA agents ambush Kinsdale, but see his stolen credentials and assume he's a State Department investigator, giving him a ride back to the embassy.

Back at the base, Kamal, posing as a deliveryman, drives a small truck, with Pidgeon and ten armed men inside.

When the exchange opens, they take the customers hostage and order the store manager to deliver a ransom letter to authorities.

The Monthly Film Bulletin wrote: "Another sample ... of the recent trend in vigilante movies, which have transferred their crude political schema from the domestic impasse created by organised crime and corrupt law enforcement to the sphere of international terrorism.

...Not for the first time in Dmytryk, a kind of Germanic over-drive seems emotionally to be forcing his subject on further than it is capable of going; though there is an intensity of pain in Kinsdale's frustrated act of banging his fists on a chair, then silently howling over the forgotten knife wound in his hand, which has more impact than his protractedly gruesome destruction of the first terrorist.

"[5] TV Guide wrote: "Director Dmytryk and writers Hunter and Powell ignore any political, social, or emotional aspects of the material and play directly to the viewer's blood-lust instincts".