Lonely pensioner, Harold Gimble, has become the first man to suffer from a new neurological disease that is slowly turning him into a zombie-like state. Harold’s hermit-like existence is shaken up when a vivacious nurse, Penny Rudge, is sent along to alleviate his stiffness. Her ‘special’ massage techniques work a treat on Harold and they become close friends. Harold agrees to trial a possible cure for the disease at a private institute, and the initial results are excellent. But the following day he’s in an even worse state than before, and after Penny accidentally overhears the doctor’s dire prognosis for Harold she decides to sneak him away the next morning. Word soon gets out, and before long a small group of bloodthirsty thugs are pursuing Harold and Penny across dramatic moorlands in the hope of a kill.

Kevin Kline and Glenn Close star as Harold and Sarah Cooper, a couple whose marital troubles are put on hold while they host an unhappy reunion of former college pals gathered for the funeral of one of their own, a suicide victim named Alex. As the weekend unfolds, the friends catch up with each other, play the music of their youth, reminisce, smoke marijuana, and pair off with each other.

A highly-evolved planet, whose denizens feel no emotion and reproduce by cloning, plans to take over Earth from the inside by sending an operative, fashioned with a humming, mechanical penis, to impregnate an earthling and stay until the birth. The alien, Harold Anderson, goes to Phoenix as a banker and sets to work finding a mate. His approaches to women are inept, and the humming phallus doesn’t help, but on the advice of a banking colleague, he cruises an AA meeting, meets Susan, and somehow convinces her to marry. The clock starts to tick: will she conceive, have a baby, and lose Harold (and the child) to his planet before he discovers emotion and starts to care?

A chance discovery leads American mining engineer Ben Harris and acquaintance Harold to discover a lost city under the sea while searching for their kidnapped friend Jill. Held captive in the underwater city by the tyrannical Captain (Vincent Price), and his crew of former smugglers, the three plot to escape…