Nooners. A Novel - Sarah Twomey

Under the busy towers of Toronto's financial district lies a subterranean world where Bay Streeters work, play and relax after the markets close. O'Doole's (nick-named Dooley's) is their pub of choice and the beautiful Cassandra Thomas, a marketing manager, is a regular. And she has admirers:

When the cruel side of the business throws her for a loop, she is faced with choosing between reliability or fleeting passion. The choice could change her forever.