Lucio (Vittorio Gassman) sees his holiday on the Italian Alps interrupted when he is suddenly and unwillingly involved in an International plot involving fake dollar bills.
Lucio Ridolfi is a married man but is complicated by many small quirks, including the fear of any unforeseen situation that could put him in difficulty. During the Christmas period he leaves for the holidays for Sestriere together with his brotherly friend Riccardo, with their respective spouses. During the journey, first on the train and then in the hotel, Lucio runs into Helen, a beautiful blonde girl who seems to show interest in her gallantry; from that moment on, however, Lucio's life became a succession of shootings and chases.
Lucio Ridolfi is a married man but is complicated by many small quirks, including the fear of any unforeseen situation that could put him in difficulty. During the Christmas period he leaves for the holidays for Sestriere together with his brotherly friend Riccardo, with their respective spouses.
During the journey, first on the train and then in the hotel, Lucio runs into Helen, a beautiful blonde girl who seems to show interest in her gallantry; from that moment on, however, Lucio's life became a succession of shootings and chases.
Lucio, after witnessing a murder, is repeatedly targeted by a mysterious assassin who will also follow him to Cairo when he is deceived and mistaken for Charles Irving, a secret agent killed due to an international conspiracy.
Lucio, once he learns the truth, is forced to assume the identity of the deceased Irving and to play the role entrusted to him by the F.B.I. in order to carry out the unfinished mission by the real secret agent.
During this wandering around Egypt, he breaks in several times even during the work of the hostess Nadia who is forced to share with him even life-threatening situations.
At the end, with success, of his adventure, Lucio is accompanied by helicopter to the holiday resort from where he left, but unlike other times he prefers not to disclose what he had to go through for the sake of his safety.
The film, shot largely in Egypt, made use of the co-production of the Egyptian film company Copro film, which had already co-produced A 008, Operation Sterminio and How we stole the atomic bomb.
In a scene at the beginning of the film we see the railway station of Alexandria, recognizable by the namesake sign, but the film was not actually shot there.
