Cliff diver

Cliff Diver by Carmen Amato.

Here is the Synopsis:  

Acapulco’s first female police detective dives into an ocean of secrets, lies, and murder when she investigates her own lieutenant’s death. In this explosive start to the award-winning Detective Emilia Cruz mystery series set in Acapulco, Emilia beat the odds to become the resort city's first female police detective. But she's living in a pressure cooker. Other detectives are scheming to push her out and the police department is riddled with corruption and drug cartel influence. When the lieutenant is murdered, Emilia is assigned to lead the investigation. Soon the man’s sordid sex life, money laundering, and involvement in a kidnapping double-cross combine to create an ugly mess no one wants exposed. The high profile murder case could wreck Emilia’s career. When another detective--Emilia's worst enemy in the squadroom--emerges as the prime suspect, keeping her job might be the least of her worries. Readers who love international mystery series crime fighters including Armand Gamache, Harry Hole, Guido Brunetti, and the Department Q series will also love Detective Emilia Cruz’s complex plots, pulse-pounding suspense, and exotic location. Perfect for lovers of detective fiction by Ian Rankin, Jo Nesbo, and Peter May, as well as Don Winslow’s Mexican cartel and border thrillers. “Consistently exciting” --