This was one of the first feature-length films for director Marco Ferreri, known for his interest in the grotesque, macabre, and darkly satirical side of life. In this black comedy, an elderly old man who lives with his mean-spirited, insensitive family, enjoys a happier side of life with an invalid friend of his who gets around on a special, adapted motorbike. After seeing that similarly impaired people are using the same conveyances, the man develops a yearning for one of the special bikes himself. But when he goes to his family with his wish, they all respond in the negative -- and none too kindly. His solution is murderous, though definitely lucrative.
by Eleanor Mannikka synopsis