It is almost unthinkable that a single maniac would murder
two women miles apart on the same day. Yet someone followed
Carol Garner home from the train station and strangled her
to death in front of her three-year-old son. And,
afterwards, Ruth Murray died in a similar manner. The
evidence is leading Detective Inspector Tom Thorne to a
stunning conclusion: there isn't only one serial killer on
the prowl, but a pair of them, working in tandem. And any
corpse that turns up in the future just might be accompanied
by a second. To stop them both, Thorne must catch a man
whose need to manipulate is as great as his need to kill; a
man who will threaten those closest to Thorne himself; a man
who will show him that the ability to inspire terror is the
deadliest weapon of all.