Birdman (1999) was the first novel of British crime-writer Mo Hayder.

It introduced her protagonist Detective Inspector Jack Caffery.

Caffery gets involved in the frightening case of five murdered women whose mutilated corpses are found in the outskirts of London.

Caffery knows his department is looking in the wrong place for the perpetrator, but he cannot guess at the forces he is up against, or the true darkness of a killer's heart.

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