The lives of three high school girls, friends since they were in grade school, are destroyed when popular senior Kat Hartigan is shot and killed in the high school restroom. The dead girl's best friend, Josie Patel, claims she saw their former pal, Perri Kahn, kill Kat and shoot her in the foot, before Perri finally shot herself in the head.

But Sgt. Harold Lenhardt—a minor character from Lippman's other stand-alone novel, Every Secret Thing—believes that a fourth person was present. Physical evidence indicates that someone else may have been in the bathroom. If so, why is that person not stepping forward, with Perri in ICU and Josie sticking to her story?

Lippman, best known for her Tess Monaghan, P.I. series, gradually reveals the secrets of the girls' relationship. Although the truth surrounding the killing is not disclosed until the climactic conclusion, when it is, the motive is both bizarre and insightful. (Jul., 448 pp., $24.95)
Reviewed by: 
Sheri Melnick