Italian sex comedy and according to the majority of online sources Terry-Thomas' last film. Only obscurity (I can find no record of a UK release or even an English dubbed version existing) appears to have prevented this from acquiring the type of notoriety afforded to inglorious last films, or ones that find formerly dignified stars in close proximity to T&A material.
The titular Harry (John Richardson) is a David Sullivan-esque Men's magazine publisher whose wealth and bestselling mags means that he is regularly mobbed by gangs of wannabe starlets on the streets of London. His upcoming 40th birthday brings him into close contact with such groupies, as well as ex-lovers, his magazine's staff and a crazy doctor (Terry-Thomas). Evidence of brief UK filming manifests itself in the form of lots of shots of Big Ben, footage of Richardson walking along Westminster Bridge, around Piccadilly Circus and Soho (showing nothing of historical interest), before its back to interior scenes shot in Rome.
Terry-Thomas looks in even poorer shape than he did in Side by Side and Hound of the Baskervilles, but is in good company. Richardson, once handsome star of One Million Years BC, here resembles Jack from On The Buses, former peplum star Gordon Mitchell regularly takes his shirt off to show some tired flesh, Marisa Mell fares a tiny bit better but shows signs of relying on heavy make-up, maybe even plastic surgery, to hold on to her youthful looks. The aged cast, bad comedy and unappealing nudity all conspire to make this the Italian equivalent of Carry On Emmannuelle, you have been warned.