London.A mother's world falls apart the day the police come knocking to tell her that her son is dead. Murdered, apparently without motive, outside a fast food restaurant. But when a witness comes forward, Honour realises her beloved son had a secret life beyond anything she imagined...Newport.When a hit and run incident nearly kills Sinead and her children, she is forced to face the truth. Someone wants her dead. She knows exactly what he looks like. But he seems to know her too. All her secrets. All her lies. Everything she tried to leave behind.Something connects these two cases. And as the stakes rise, DI Locke must untangle the web of deceit – before someone else dies.I Know Youis the first in a gripping new crime thriller series featuring DI Emma Locke, perfect for fans of Cara Hunter and Carol Wyer.