Cold Sacrifice (Ian Peterson Series #1)

When Henry's wife is stabbed to death, he pays a prostitute to give him an alibi. Her body is discovered, strangled, and the police realize they are dealing with a serial killer who will stop at nothing to cover his tracks. While they are hunting for evidence, another prostitute is brutally murdered. On the track of a vicious killer, DS Ian Peterson doesn't realize he is risking the life of his young colleague, Polly.