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?