Una sull'altra
- annos singulos: 1969
- Patriam: France, Italy, Spain
- genus: Mystery, Thriller
- Studio: Les Productions Jacques Roitfeld, Empire Films, Trébol Films C.C.
- keyword: exploitation, giallo
- Director: Lucio Fulci
- cast: Jean Sorel, Marisa Mell, Elsa Martinelli, Alberto de Mendoza, John Ireland, Riccardo Cucciolla