Deadly Gamble by Connie Shelton
In this debut mystery series novel, Charlie Parker, accountant and partner in an Albuquerque private investigation firm, is visited by her old school friend, Stacy North. Stacy's Rolex watch is missing and she begs Charlie to help locate it before her husband finds out. Things are complicated by the fact that Stacy had been seeing another man, Gary Detweiller, and he's the one she suspects of having stolen the watch. With a little detective work, Charlie retrieves the missing watch and all should be well. But three days later, Detweiller is murdered. All eyes turn to Stacy as the prime suspect.
Once again, Stacy begs Charlie's help in proving her innocence. As she begins to ask questions, Charlie learns that Detweiller's life was not as simple as first perceived and that any number of people had grievances against him. And before she can pinpoint the killer, her own life is in danger as well.