A self-taught amateur detective who learned his trade from a book finds himself caught between two gangs in Milan, trying to recover a wooden leg full of drugs. He is accompanied by an unlikely trio: a deaf secretary, an undertaker and a monkey.
Henri Salvador , Valeria Fabrizi , Memmo Carotenuto , Aldo Giuffrè , Nino Taranto , Francis Blanche , Pietro De Vico , Giustino Durano , Ignazio Leone , Enzo Maggio
