A couple live in an old, isolated mansion. The husband's murderous, insane twin escapes from a lunatic asylum. The cops haul off the wrong twin and the wife is stuck with the killer.

The year is 1949 and reporter Hugh Jameson is looking for a story. He focuses on Emma Porter, a woman who was accused of the axe murder of her father thirty seven years earlier. Jameson disappears during his search and his wife hires Charles Ripley P.I. to find him. Ripley's search leads him to Emma's son who has his own nasty secrets to protect.

Captain Rameses and his Legion of the Winged Serpent brigade are out to claim Earth for their dying race. Out to save Earth is an alien guard patrol located in the Bermuda Triangle, the League of Races. LOR leaders warn Rameses that he's breaking galactic treaty rules. The alien villain responds by launching an invasion which telepathically drives Earthlings to suicide. The LOR implore UFO expert Professor Duncan to help them. Eventually, the two alien forces battle. Will the Earth be saved?