Follia omicida (Murder Obsession)

And people complain about The Iguana with the Tounge of Fire??!! I recently revisited Riccardo Freda's final giallo Follia Omicidia from 1981 and it's a very, very poor effort, even by 80's giallo standard. Overlong, convoluted and short of suspense, this film is a mess. Add a godawful synth soundtrack and some of the worst special effects you're likely to see and you're got yourself a film you're unlikely to want to revisit on a regular basis.

L'Iguana dalla lingua di fuoco (The Iguana with the Tounge of Fire)

It's fair to say that Riccardo Freda's L'Iguana dalla lingua di fuoco isn't particularly well-regarded in giallo circles. I'll have to agree that it isn't a top-tier giallo. The special effects are a bit questionable and the zooms every time we see sunglasses on screen are a bit over the top, but any film starring Luigi Pistilli and Dagmar Lassander in her prime is worth watching and the soundtrack by Stelvio Cipriani is great.

A Doppia faccia (Double Face, Liz & Helen)

While Riccardo Freda's influence on Italian horror is undeniable, his work in the giallo field was far less influential. A Doppio Faccia from 1969 is Freda's the first and most successful attempt in the genre. Starring Klaus Kinski and Maggaret Lee, the film is similar to Fulci's Una Sull' Altra, which was made in the same year. Although slightly hampered by some poor miniature work and backprojected screens, A Doppio Faccia still remains an interesting thriller that keeps the viewer guessing.
I recently bought the Alfa Digital composite DVD and even though it's an improvement on the previous versions I've seen, the film deserves a proper release.