The murder of a nine-year-old girl.

The mysterious death of two twin brothers.

The disappearance without a trace of a girl, whose remains were later discovered on the other side of the country.

Is it really between Is there a connection between these tragedies?

Pathologist Temperance Brennan, who is conducting a forensic examination, is sure that there is such a connection.

She begins her own investigation - and gradually understands: behind all these deaths is a gang of murderers that has been hiding under the guise of an ordinary biker club for many years.

But this discovery could cost her her life...