Deep dark blue

Lake Zurich is Rosa Zambrano's beat. Once a detective with the CID, she's traded in serious crimes for the serenity of the water, patrolling it daily as the first female officer in Zurich's maritime police force. But when the body of Dr Jansen, a renowned fertility doctor and successful biotech entrepreneur, is dredged up in a fisherman's nets, Rosa must call on her old training to solve his murder.