This earlier book (1969) by Rennie Airth is very different from his John Madden thrillers. It is somewhat humorous tale of Harry Brighton, who gets roped into the kidnapping of a baby from a rich Italian widower, Rifai, by John Morland. They arrive in Rome and Harry meets the others in the caper which include a beautiful young woman, Paula, and one of Rifai's burly guards, Hermann. They rent an apartment and a baby, Alberto, and pretend that Paula, Harry, and Alberto are a family, with the idea that when the babies are switched, the neighbors won't realize. However, everyone loves Alberto, including the neighbors, Paula, Harry, and even Rifai.