Most people head to Florida for the sea, sun and surf. Detective Carson Ryder is there for the psychopathic serial killers. Having gained a reputation for being able to get into the heads of the most disturbing criminals, Carson has been recruited by the Florida Centre for Law Enforcement. As Carson struggles to bond with his new colleagues, he lands his first case - a stack of bodies found encased in concrete. Have the police stumbled across a murderer's regular dumping ground, or was this a mass killing? Certain forensic details hint at human trafficking. And one escaped girl may prove the key to unravelling a shocking web of abuse, prostitution and murder - if Carson can get to her before her captors do ...