A magnate and his younger wife hire David to teach guitar to their teenage daughter. The wife quickly seduces David, and simultaneously he strikes up an acquaintance with the familys inquisitive neighbor. One night, David is mugged but rescued from injury by a stranger, Daniel, who also becomes Davids friend and admits to being a hit man. Video tapes of their activities appear in the lovers mail; David thinks theyre from the neighbor, Daniel is sure the husband is onto the affair and hired the mugger. After Daniel tells David that hes been hired to kill the husband, an elaborate manipulation plays out, with murder, suicide, a payoff, more videos, and a surprise pairing.