I have just spent upwards of seven seconds contemplating why I would select horror as a tag after also selecting thriller, given that the main feature of both of these genres is that some murdering happens. In the case of Tenebrae, the reason for the distinction is that many of the murders are over the top violent. …I mean, not by modern standards. They’re mostly pretty tame? But by 1982 standards, it’s easy to tell that something hardcore is happening. And hell, in at least one instance towards the end of the movie, it was modern standards hardcore, albeit without modern special effects to seal the deal.
Other things I learned while watching “Latin word for Darkness” include: a) there’s a very specific feel to movies in the ’70s and early ’80s, partially attributable to the lack of steadicam, where the credits will always feature the study of a skyline as some character traverses some city; b) you can apparently ride your bike on the highway to JFK airport, controlling for what decade it is; c) bras do not exist in Rome; and d) Dario Argento knows what’s up.
Seriously on that last point. I have rarely seen a movie tip so far into “why does this scene even exist?” territory only to suddenly justify itself, much less multiple times in a row. Bravo, sir.
Also: seriously on that second to last point. …bravo, sir.
 Well, even that’s not an absolute. Sometimes the dying in a horror film is not attributable to murder.
 and maybe in the case of most giallo films? Here is where I will not pretend that I completely understand this (let’s say) rich and vibrant Italian subgenre.