Two (1996)

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 when FBI agent 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; also in that accident was a woman and her baby, now her baby died, and it seems she was a little unbalanced, and being unable to bear with the loss of her baby she took one of the two babies (Booth) and her baby was believed to be Gus' twin. It seems that her husband was abusive to Booth and Booth would be become homicidal. What he really wanted was to take over Gus' life, but unfortunately he is dying, so he decides to let Gus live his life -- that of a criminal being hunted by the law. No one believes Gus' story especially agent Carter. So Gus' only hope is to try and prove that Booth exists or get him before he dies.