Detective Carson Ryder faces a cunning and inventive adversary in this terrifying thriller from the bestselling author of Her Last Scream.Young men in Miami are being abducted and tortured after their drinks are spiked with a cocktail of drugs that leaves them unable to recall their ordeal. Despite this, Detective Carson Ryder knows the predator's name, height, age, colouring ... everything. It's impossible for the perpetrator to avoid detection. Yet he does.When Carson seeks answers from his brother, a wanted criminal intimate with twisted minds, Jeremy's odd behaviour sparks even more questions. With each abduction, the violence becomes more horrific, and it's only a short time until torture turns to murder.But how do you catch an invisible man?