Physics lecturer Steven Chesterman finally realizes his long cherished dream of perfecting a teleportation device and rushes home to tell his wife, Alice. But she has news of her own - she's a male alien disguised as a human female. Then Elizabeth arrives, another alien who is to escort Alice back to the planet Nulark.
Kenneth Branagh
as Steven Chesterman
Courteney Cox
as Alice
Alice Connor
as Sarah
Heather Graham
as Elizabeth