Robert H. Solo

Nico Toscani is an Italian immigrant, American patriot, ex-CIA agent, aikido specialist and unorthodox Chicago policeman. He is as committed to his job as he is to his personalized brand of justice—expert and thorough bone-crushing.

Matthew Bennell notices that several of his friends are complaining that their close relatives are in some way different. When questioned later they themselves seem changed, as they deny everything or make lame excuses. As the invaders increase in number they become more open and Bennell, who has by now witnessed an attempted 'replacement', realises that he and his friends must escape or suffer the same fate.