"Retired police chief Katherine Sullivan moved away from Edina, Minnesota to feed her artistic soul in New Mexico. But when she receives an urgent call, her serenity is shattered. Nathan Walker, her best friend and former colleague from her days on the police force, is missing and his crew of security experts hasn't seen him in days. Now it's up to Katherine to fly home and track him down. Meanwhile, Edina is reeling from the murder of a local woman,...