What Have You Done to Solange

From cinema masters like Darion Argento, we got a peak into "Gialo", the amazing film genre that blows our minds with stunning visuals and creepy stories - and this is one the genre best: A teacher who is having an affair with one of his students takes her out on a boat. They see a knife killing on shore. Other gruesome murders start occurring shortly thereafter, and the teacher suspects that he may be the cause of them.