On a remote island off the coast of Ireland, a man is found dead with his bones missing. He’s all squishy flesh. The film’s budget doesn’t allow us to see much of that but what we get – a rubbery, flabby face – is pretty great. Constable John (Sam Kydd) calls the island’s physician Dr. Reginald Landers (Eddie Byrne) but his skills are limited and after an autopsy doesn’t pull up much in terms of answers he scurries to London to discuss the matter with imminent pathologist Dr. Brian Stanley (Peter Cushing), who in turn calls on bone specialist Dr. David West (Edward Judd). He’s busy with his lady friend Toni Merrill (Carole Gray) who as luck would have it happens to have access to a helicopter that can take them to the island straight away (although it must return to London immediately after thus stranding them on the island for a few days.

After learning that a cancer specialist had set up shop on the island they go to visit him hoping to gain his help as well, but find him dead and boneless like the other guy. His lab assistants are all squishy as well. But the dude had a really nice lab which allows our heroes to do some nice science-y stuff. They do some autopsies and look at things under a microscope and say a lot of words that don’t make much sense even if you have a medical degree.

Eventually, they find the monsters. They look like slimy Jell-O molds with tentacles. They are impossible to kill and use the tentacle to inject their victims with bone-dissolving liquid. Our guys chop them with an axe, shoot them with rifles, torch them with Molotov cocktails, and even throw dynamite at them, but like I say those creatures are indestructible.

To keep the rest of the islanders safe they lock them all into one room which only causes mass panic when the lights go out. Meanwhile, these brilliant scientists finally decide that they should inject some cows with some radioactive fluid (I told you that the cancer guy had a well-stocked lab) figuring that the monster will eat the cows and then die of radioactive poisoning.

All of this is taken absolutely seriously by our actors and filmmakers. I love these old British horror films from the 1960s. They are so full of absolute silliness with ridiculous plots and poorly built monsters, but the actors perform like they are doing Shakespeare (and no doubt many of them are trained Shakespearean actors). It is wonderful. Just wonderful.