Jefferson Keyes, a former government agent, is now a private eye/mercenary. His fee never changes: a cool million, with results guaranteed. In the opener, Keyes searches for a missing heiress who hasn't been seen in thirteen years.
A wealthy tycoon accused of murder needs Keyes to find the only person who can clear him. Jeff's only clue is that her picture was taken during a thirty minute period at Niagara Falls.