One the great British Sci-Fi thrillers of the 1960s! When the inhabitants of Petrie’s island succumb to a mysterious disease, doctors Brian Stanley (Peter Cushing) and David West (Edward Judd) are asked to investigate. Puncture marks on the corpses reveal the horrifying truth: the islanders and their animals are being killed not by a disease, but by a strange type of silicate organism that sucks the bone from their bodies...