Nick Hart is a struggling American artist who lives amongst the expatriate community in 1920s Paris. He spends most of his time drinking and socializing in local café's and pestering gallery owner Libby Valentin to sell his paintings. He becomes involved in a plot by wealthy art patroness Nathalie de Ville to forge three paintings. This leads to several run-ins with American rubber magnate Bertram Stone, who happens to be married to Hart's ex-wife Rachel.

The Invaders, alien beings from a dying planet. Their destination: the Earth. Their purpose: to make it their world. David Vincent has seen them, for him it began one lost night on a lonely country road, looking for a shortcut that he never found. It began with a closed deserted diner, and a man too long without sleep to continue his journey. It began with the landing of a craft from another galaxy. Now, David Vincent knows that the Invaders are here, that they have taken human form. Somehow he must convince a disbelieving world that the nightmare has already begun.