Harriet Blossom is married to Robert Blossom, a businessman who'd rather spend the night at his bra factory than at home with her. One day, Harriet's sewing machine breaks, so Robert sends a repairman, Ambrose, to fix it. It's lust at first sight for Harriet, who convinces Ambrose to hide out in the attic for a tryst. When her new beau shows no desire to leave, the pair begin a years-long love affair right under Robert's nose.
| Directing | Joseph McGrath | Director |
| Writing | Joseph McGrath | Story |
| Writing | Alec Coppel | Theatre Play |
| Production | Josef Shaftel | Producer |
| Camera | Geoffrey Unsworth | Director of Photography |
| Costume & Make-Up | Jocelyn Rickards | Costume Design |
| Art | Assheton Gorton | Production Design |
| Editing | Ralph Sheldon | Editor |
| Production | Fred Slark | Production Supervisor |
| Sound | David Hawkins | Sound Editor |
| Sound | Riz Ortolani | Original Music Composer |
| Sound | Riz Ortolani | Conductor |
| Writing | Alec Coppel | Screenplay |
| Writing | Denis Norden | Screenplay |
| Camera | Brian Elvin | Camera Operator |
| Camera | Peter MacDonald | Camera Operator |
| Directing | David Besgrove | Assistant Director |
| Directing | Maggie Unsworth | Continuity |
| Production | Stan O'Toole | Producer's Assistant |
| Sound | Laurie Clarkson | Sound Recordist |
| Sound | Gerry Humphreys | ADR & Dubbing |
| Art | George Lack | Art Direction |
| Art | William Alexander | Art Direction |
| Art | Terry Apsey | Construction Manager |
| Costume & Make-Up | Bridget Sellers | Wardrobe Supervisor |
| Costume & Make-Up | Trevor Crole-Rees | Makeup Artist |
| Costume & Make-Up | Bernadette Ibbetson | Hairdresser |
| Crew | Richard Parker | Special Effects |
| Art | Sally Scott | Painter |
| Art | Sidney King | Title Designer |
| Sound | Jack Jones | Songs |
| Writing | Norman Newell | Lyricist |
| Production | Paul Hitchcock | Executive In Charge Of Production |
| Directing | Michael Guest | Second Assistant Director |
| Directing | Stuart Black | First Assistant Director |
| Camera | Sergio Strizzi | Still Photographer |
| Sound | Shirley MacLaine | Songs |
