A planet, whose denizens feel no emotion and reproduce by cloning, intends to take over Earth from the inside by sending an unprotected, fashioned mechanical penis, with a humming, to impregnate an earthling and stay until the birth. The alien, Harold Andersongoes into Phoenix as a banker and sets to work with finding a mate. His approaches to women are inept, and the humming phallus will not help, however, on the recommendation of a banking colleague, he or she hears an AA meeting, meets Susan, and convinces her to wed. The clock starts to tick: Can she conceive, have a kid, also lose Harold (along with the child) into his planet until he discovers emotion and starts to care?