Paramedic Lauren Yates stumbles into a world of trouble the night she discovers a killer and his victim in an inner Sydney alley. When the killer threatens to make her life hell if she tells the police what she’s seen, she believes him – he’s Miles Werner, her sister’s violent ex, father to Lauren’s niece, and not a man to cross.
But when another victim of a stabbing reveals to Lauren with his dying breath that Werner attacked him, too, she finds herself with blood on her hands and Detective Ella Marconi on her back. Ella is keen to cement her temporary placement in the homicide squad and views Lauren as the perfect witness for this latest murder because she can testify to the victim’s last words.
Ella soon realises Lauren is hiding something, however, and while her colleagues label her suspicion an obsession, she begins her own investigation. But the harder Ella pushes, the more Lauren resists, and the worse the threat from Werner becomes, putting them both in increasingly serious jeopardy.