Gus McClain is a college professor, whose life is perfectly idyllic, he has a good job, good friends, and a loving wife. One day things change for Gus when he discovers all sorts of odd things happening, and his friends are telling him of his unusual behavior, which he has no idea of. At first, he attributes all this to a possible memory loss. But when his wife is killed and evidence leads to him, he is arrested. When the evidence that the police have is circumstantial, he is released but later FBI Carter has him arrested again, it appears that a lot of people have been killed all over the country including Carter's partner. Gus maintains his innocence and as he is being transported someone breaks him out and knocks him out. When he wakes up he is shocked to see someone who looks like him and he tells him that he is his twin brother, Booth. It seems that years ago when they were babies, they and their parents were in an accident, and also in that accident was a woman and her baby, now...