Though Monk is witness to the terrible bombing of an afternoon pleasure boat on the river that leaves 200 people dead, much to his dismay the case is taken from his hands and given over to the commissioner of police. An Egyptian man is quickly caught, tried, and sentenced to death--and then just as swiftly murdered in prison. When evidence surfaces that proves the dead man innocent, the case is handed back to Monk, who must now rely on his own memory of the event to help piece together what really happened.