"The principal themes of madness, ambition, greed, deceit, and vanity make this a very human tale, and the opposition between palaeontology and psychology is made all the more intriguing by its extension to the principal characters. Naturally Cushing and Lee are on fine form, and although Cushing has the lions share of the screen time Lee makes quite an impression as the more unscrupulous sibling. The Creeping Flesh has an intriguing premise supported by some wonderful images and fine performances, but is never quite able to entangle itself from a messy plot." - Shaun Anderson, The Celluloid Highway