Naked option - Joe Kolman

Dave Ackerman, the narrator of Naked Option, is a brilliant trader but one day, recklessly trying to one-up his firm's superstar, he goes naked on an option trade and loses $112 million in two hours. His career is over. Then he hears about an auditing job at an investment bank. He knows within minutes that something is very wrong, but he's so desperate, he takes the job.His new partner is Susanna Cassuto, an attractive young auditor he tags as a rich party girl. But on the couch with the lights off, she becomes something else - awkward and inexperienced. What is going on? Together, they discover the elegant embezzlement scheme going on: one trader is working inside with a partner outside. When somebody turns up dead, Dave and Susanna race to put the pieces together - but the bank drops the case. They're fired. Furious, Dave goes out on his own to find the killer.But the killer finds him first.