Peter Goodrich, an English antique dealer visiting Naples for a pleasure trip, meets the beautiful Lisa Carter by chance and begins seeing her until the woman disappears.
| Actor | Role |
|---|---|
 Ugo PagliaiPeter Goodrich | Peter Goodrich |
 Marilù ToloLisa Carter | Lisa Carter |
 Carlo EnriciClaude Goodrich | Claude Goodrich |
 Yanti SomerGreta Lehmann | Greta Lehmann |
 Daniela GuzziSarah | Sarah |
 Emilio CigoliSir Arnold Wyatt | Sir Arnold Wyatt |
 Margherita SestitoMaria | Maria |
 Sergio RossiColonnello Osbourne | Colonnello Osbourne |
| LLuciano MelaniMax Finney | Max Finney |
 Tonino CuomoMarino | Marino |
| MMarianella LaszloNancy Braitwhite | Nancy Braitwhite |
 Leopoldo MastelloniBarman | Barman |
 Lucio FlautoCommissario Bonetti | Commissario Bonetti |