Mysterious and unearthly deaths start to occur while Professor Saxton is transporting the frozen remains of a primitive humanoid creature he found in Manchuria back to Europe.

Christopher Leeas Prof. Sir Alexander Saxton
Peter Cushingas Dr. Wells
Telly Savalasas Captain Kazan
Alberto de Mendozaas Father Pujardov
Silvia Tortosaas Countess Irina Petrovska
Julio Peñaas Inspector Mirov
Ángel del Pozoas Yevtushenko
Helga Linéas Natasha
Alice Reinheartas Miss Jones
José Jaspeas Conductor Koniev