I've had my hands full the last few weeks, but I have seen some interesting gialli lately:
Double Face AKA Liz and Helen (1969)
Problems begin when Klaus Kinski discovers his wife Helen seems more interested in her friend Liz than honoring their marriage vows, but the fun doesn't stop there. When Helen's car is smashed in a roadside accident, she is presumed dead, but Kinski stumbles upon a cheap porn film with a veiled woman who looks like his lost bride. As his world crumbles, he dives headlong into the abyss to discover the truth.
Kinski is always fun to watch and it's nice to see him play a protagonist for a change. Nice visuals and great score with twisting logic that holds your interest.
Il Mostro AKA The Monster (1977)
Valerio has hit bottom in the newspaper trade, reduced to writing a lonelyhearts column and answering letters from frustrated housewives. When a serial killer begins stalking the rich and famous, he alerts our wannabe journalist to every crime, allowing Valerio to scoop the other tabloids and climb to the top of the heap, but the price is heavy.
I saw this long ago in Italian with a pan & scan print, but it has recently come to Amazon in widescreen with subtitles and is even more amazing now. A character driven plotline with deep social ramifications, The Monster is cinematically different from most gialli in that there are not a lot of crazy camera angles and blood and gore are kept to a minimum, but the themes are just as fresh today in a world of social media that favors sensationism over truth.
The Bloodstained Shadow (1978)
A professor returns home to Venice, where a string of murders begins. His brother, the local parish priest recieves threatening letters and the siblings must face events from the past to solve the crimes.
I liked Antonio Bido's Watch Me When I Kill AKA The Cat's Victims (1977) for its original story, but this film is not of the same caliber, as Bido steals literally and liberally from the best of the genre--Bird With the Crystal Plumage (1969), Deep Red (1975), Don't Torture a Duckling (1972)--and presents them as his own ideas! He even tries using The Goblins for the score, but to no avail. Avoid unless you are in need of sleep.