this mysterious period thriller or horror from genre veteran jacques tourneur remain one of the creepy chiller rko ever produce . a vicious leopard escape from a nightclub act and a series of brutal murder begin to take place . be the leopard the culprit . tourneur keep the audience guessing and never let the secret out till the very end . while the film a a whole may be a bit slow for today standard and it main set piece ( the trap in cemetery scene while the blood behind the locked door sequence while the eye in the dark scene ) retain their shock value . this rare classic be a forgotten gem that should be see by any fan of classic horror and not least because it remind one that horror at one time be about more than just bloodsoaked ultra violence .