
An architect is convinced there are aliens in the world.
Witnessing an alien incineration at a religious shrine, a young woman (Barbara Hershey) believes she had a miraculous vision.
Vincent races to find a sick alien (Robert Walker), whose touch freezes people, before other aliens reach him.
Vincent's investigation of the deaths of two astronauts in an eerie red fog leads him to suspect human culprits.
Extraterrestrials discourage Vincent from publicizing proof of their presence by capturing his brother (Linden Chiles).