Susan Soble is a fifty-one year old mother of two and a half grown boys. She is also an ex-principal, ex-equestrian, ex-wife and now an ex-best-friend after a brutal murder that she is determined to solve. To the dismay of her lover, Detective Carlos Alvarez, Susan uses her equestrian, school and family contacts to uncover a new suspect in that murder, all the while fending off her increasingly volatile ex-husband, Peter.