Neanderthal

Matt and Susan, two rival palaeontologists and former lovers, are summoned by a secret US government agency to help locate their college mentor, who has disappeared without trace in the remote mountains of Tajikstan. It appears that a race of Neanderthals have survived on the roof of the world, the high Himalayas. When Matt and Susan finally make contact, the implications of their dramatic discovery are more than simply scientific. These hominids have the uncanny facility for telepathic communication, and both American and Russian agents would like to harness their power for military and espionage purposes.