Jay Mallory is a professional killer. Cool and purposeful, he carries out the murders he is ordered to do. He doesn't know emotions - at least that's what he thinks. When his wife disappears, this changes abruptly. His fear and anxiety are soon joined by feelings of jealousy, as he learns that his wife has a lover. In the middle of this personal crisis bursts a new assignment. Gradually, the killer finds out that his victim is both his client and his wife's lover, and that she is the one pulling the strings in the background...