Absolutely ridiculous - but a lot of fun!

Eyeball (AKA Red Cats in a Glass Maze ~ 1975)

Italian/Spanish co-produced giallo/slasher, written and directed by Umberto Lenzi, and starring John Richardson, Martine Brochard, and Andrés Mejuto. A group of American tourists are on a bus/coach tour of Barcelona. However, before long female members of the coach party are being picked off by a mysterious figure dressed all in red when the party stops for sightseeing attractions or overnight stayovers. But the women aren't just being killed; the left eyeball of each victim is gouged out - sometimes prior to death. The lead detective retires in one week, and is keen to solve the killings before he leaves, whilst the rest of the party just try to survive.

The plot of this is actually bonkers, the number of red herrings is ridiculous, and the murderer's motive is one of the most utterly stupid ever - none of which stops it from being a load of fun! The cast are good (plenty of faces from other Italian genre films), there's a lot of blood plus severed eyeballs, all the nudity you'd expect from a 1975 Italian exploitation film, and a good helping of so-bad-it's-good dialogue. Having said all that, unlike with a lot of these films, the plot - whilst insane - is at least followable (often with these you end up abandoning any hope of coherence, and just watch for the crazy spectacle). Real OTT fun. Oh, Bruno Nicolai's funky score - bizarrely at odds with some of the carnage - deserves special mention! 7/10