A young girl swimmer, involved in an organisation with the aim of protecting dolphins, is engaged in an action against the local fishermen whose nets are endangering the creatures. She develops a rapport with some rescued dolphins, joining them in the society's tank, surprising other members with her ability to hold her breath for long periods. Following the death of a colleague, with whom she was in love, She decides to publicise the situation by breaking a world free-diving record.
| Actor | Role |
|---|---|
 Franco NeroLuca Morinari | Luca Morinari |
| AAlexandra BrochenNot listed | Not listed |
 Paolo CalissanoNot listed | Not listed |
 Karin GiegerichNot listed | Not listed |
| SSabrina BallocchiNot listed | Not listed |
| GGiuseppe BorghesiNot listed | Not listed |
 Gaia Bulferi BulferettiSusanna | Susanna |
| AAlessia CanducciNot listed | Not listed |
| GGianfranco ColettiNot listed | Not listed |
| LLea ErmetiNot listed | Not listed |
| OOriana ErmetiNot listed | Not listed |
| GGiorgio FranciniNot listed | Not listed |
| MMirca FratelnaliNot listed | Not listed |
| AAlfredo GuglielmiNot listed | Not listed |
 Marco LorenziniNot listed | Not listed |
| AAlberto MeldoliNot listed | Not listed |
| DDino MoroniNot listed | Not listed |
| MMercedes Porter HopeNot listed | Not listed |
| CCecilia RemirezNot listed | Not listed |
| TTeresio RicciottiNot listed | Not listed |
 Clive RicheNot listed | Not listed |
| MMirco RocchiNot listed | Not listed |
| SSergio SavorettiNot listed | Not listed |
| LLina VicoNot listed | Not listed |
| FFrancesca ZennaroNot listed | Not listed |