A very interesting director and especially this film being a part giallo part cop procedural and we have a sexy 25 year old woman with the mind of a three year old. This being as tasteful as possible and she disappears, the police straight away think of prostitution but there is also some humour but the ending is amazing. The very next year is really a giallo, The Bloodstained Butterfly (1971) and later on Puzzle (1974) both great and earlier Duccio Tessari had two, just as splendid spaghetti westerns, A Pistol for Ringo (1965) and The Return of Ringo (1965). In this film it gets a bit confusing now and again but then a giallo usually does but it is all so well done and with Raf Vallone so really good as the father, it could easily have been a bit silly. Frank Wolff as the inspector and has a great time with Eva Renzi as his wife around the flat, in bed and even strumming his guitar.
