John Smith has been happily involved in a bigamous marriage for five years. He lives with Stephanie in Finsbury and Michelle in Stockwell. Fortunately, for John, he's a taxi driver which involves varying shift work! Simple? Well, when John unwittingly becomes a have-a-go hero and the Finsbury and Stockwell police forces discover something suspicious in their paperwork, John's happy bubble is about to be burst. The action of the movie takes place during the next hectic 24 hours as John, with the assistance of his gullible neighbor Gary, rush between North and South London attempting to thwart the police and prevent the two loving wives coming face to face!

Georgina is an ambitious young London professional who learns she has only one month left in which to conceive a child. After exhausting all possibilities with her baby-phobic boyfriend, Georgina turns to her wildly optimistic friend Clem, with whom she sets out to identify and "land" the perfect father for her child.