Martin Blank is a freelance hitman who starts to develop a conscience, which causes him to muff a couple of routine assignments. On the advice of his secretary and his psychiatrist, he attends his 10th year High School reunion in Grosse Pointe, Michigan.
Martin Blank is a professional assassin. He is sent on a mission to a small Detroit suburb, Grosse Pointe, and, by coincidence, his ten-year high school reunion party is taking place there at the same time.