Clinical psychologist Tony Hill and detective Carol Jordan struggle to recapture celebrity sociopath Jacko Vance, who has broken out of prison with the intention of exacting violent revenge.

"Is it violence if it's virtual? The outspoken women targeted by the increasingly cruel Internet trolls and bullies would probably say so. For some of them, the torrents of bile and vicious threats prove too much. They begin to silence themselves in a series of high-profile suicides. Or do they? Tony Hill isn't convinced. But he's the only one. Former cop Carol Jordan is too busy messing up her life to care. Until she gets an unexpected second chance....