Two children are shipwrecked on a desert-island and fall in love while growing up together.

In London in the 1970s, Scotland Yard police investigators think they have uncovered a case of vampirism. They call in an expert vampire researcher named Van Helsing (a descendant of the great vampire-hunter himself, no less) to help them put a stop to these hideous crimes. It becomes apparent that the culprit is Count Dracula himself, disguised as a reclusive property developer, but secretly plotting to unleash a fatal virus upon the world.

A young British clerk in a gloomy North Country undertaker's office, Billy is bombarded daily by the propaganda of the media that all things are for the asking. This transparently false doctrine, coupled with the humdrum job and his wild imagination, leads him on frequent flights to "Ambrosia," a mythical kingdom where he is crowned king, general, lover or any idealized hero the real situation of the moment makes him desire. His vacillating commitment and post-adolescent immaturity have created situations which make Ambrosia all the more attractive. He's succeeded in becoming engaged to two different girls, simultaneously, while in love with a third, Liz. He's in hot water with his employer, having spent a rather large sum of postage money on his personal frivolities. And last, but not least, his dream of becoming a highly-paid, famous scriptwriter in London seems doomed to failure. The only person in his life capable of bringing him down to earth is Liz, and she's having a difficult ...