An archeologist's wife has recurring nightmares about ritual killings in an Etruscan tomb while her husband is away excavating a lost temple. After a phone call where she is forced to listen to him being murdered, she travels to the excavation site to solve the mystery of his death.
| Actor | Role |
|---|---|
 Elvire AudrayJoan Barnard | Joan Barnard |
 Paolo MalcoMike Grant | Mike Grant |
 Claudio CassinelliPaolo Domelli | Paolo Domelli |
 Marilù ToloContessa Maria Volumna | Contessa Maria Volumna |
 Wandisa GuidaHeather Hull | Heather Hull |
 Gianfranco BarraThe Police Commissioner | The Police Commissioner |
 John SaxonArthur Barnard | Arthur Barnard |
 Van JohnsonMulligan - Joan's father | Mulligan - Joan's father |
 Maurizio MattioliMasaccio | Masaccio |
 Carlo MonniSenaldi | Senaldi |
| MMario CecchiNot listed | Not listed |
 Anita LaurenziProfessor Sorensen | Professor Sorensen |
 Angela DoriaHilda | Hilda |
| LLucia MonacoJulie | Julie |
 Franco GarofaloNot listed | Not listed |
 Jacques StanyNick Forte | Nick Forte |
 Luigi RossiNot listed | Not listed |
 Fulvio MingozziThe Customs Officer | The Customs Officer |
 Nazzareno CardinaliNot listed | Not listed |
 Antonio MaimoneNot listed | Not listed |
 Mario NovelliNot listed | Not listed |
| BBruno RosaNot listed | Not listed |