Downfall

"Help me." When a young woman rushes into Sam Capra's San Francisco bar and whispers these desperate words, Sam feels compelled to help. A moment later she is attacked by two killers. With Sam's aid, she manages to overpower the men, saving his life in the process before vanishing into the night. On discovering that one of the attackers is no mere thug, but, shockingly, one of the most powerful investors in America, Sam searches for the beguiling young woman who asked for help and unearths a deadly network run by some of the most powerful and influential people in the world...