Double or nothing

"Ester 'Essie' Tomasi is a genius. She got an early entrance scholarship to university and at eighteen years old is already in her second year of pre-med. But Essie also struggles with a dark secret: she has a serious gambling problem. She is falling deeper and deeper into debt, struggling to keep up with her heavy course load and unable to make even the simplest of decisions without flipping a coin. But when Essie makes a bet that she can't cover, it's her identical twin sister, Aggie, who comes to the rescue, making a dangerous deal with the gangsters holding Essie's latest bet. Essie must find her way out of this mess or risk losing everything she's ever cared about"--Provided by the publisher.