Lindsay, a homicide inspector in the city's police department... Claire, a medical examiner...Jill, an assistant D.A...and Cindy, a reporter on the crime desk of the San Francisco Chronicle, now look for a criminal who has sprayed bullets into a crowd of choir boys and girls leaving a San Francisco church. Miraculously -- or was it the intention of the shooter? -- only one child dies. Then the killer strikes again, leaving his mystifying calling card -- and the body of an elderly woman. The unorthodox allegiances of Lindsay and her friends lead them close to their prey. But nothing can prepare them for the twisted logic behind his choice of victims.