When Professor Michael Peterson learns he has a terminal brain tumor and is faced with no other viable options, he promises complete confidentially to undergo an experimental and highly secretive operation in brain cell grafting. While recuperating, he begins to have flashes of fragmented images that have no connection to his life. He soon realizes he is an unwilling participant in a murder plan initiated by his donor. Drawn into a maze of deceit and danger, Michael must choose between keeping his word to the person who saved his life or making an attempt to save the life of a complete stranger.