The renowned Insurance International Co. has created an enquiry network, headed by detective Jack Clementi, to defend itself against insurance fraud. Jack has saved the company enormous amounts of money throughout his successful investigations and his bosses are more than willing put up with his brusque manners, his disconcerting frankness, and his intolerance for any form of company bureaucracy. Yet he is a big guy with a huge heart.

Bob Crane has long maintained a psychic connection to his twin sister, Jessica, who works as a fashion model in Milan. When Bob senses that his sister might be injured or killed, he travels to Italy to look for her, only to discover that she's vanished without a trace. Enlisting the help of about-to-retire Commissioner Danesi, Bob soon finds himself embroiled in a web of mystery and terror, when a scissors wielding killer begins to strike and all clues lead back to Jessica...

A mysterious killer eliminate the singers of a brand new music Festival in Naples. Some journalists will try to discover who is that murderer who seems to be obsessed by the song "Funiculi, Funicula".