Giorno più lungo di Scotland Yard was released in the year 1975。Giorno più lungo di Scotland Yard is also called as Hennessy, Mann namens Hennessy, Jaque a la reina, Hennessy - maailman vaarallisin mies, Codewort Hennessy。

Set in the Seventies, Hennessy is a Irishman who believes in peace, but who has had connections to the IRA. Hennessy's family is killed, and he plots revenge, setting out to assassinate Queen Elizabeth of England.

Giorno più lungo di Scotland Yard actors and actresses include Lee Remick, Patsy Kensit, Rod Steiger。