Rachel Reece, host of the popular true crime podcast Ireland's Missing Women, has been brutally murdered. Dr Terry O'Brien has recently arrived in Ireland from Scotland to take up a position as state pathologist. As Terry gathers evidence to help with the police investigation, she becomes convinced that they're following the wrong line of inquiry and begins her own research. She soon finds herself in the thick of cold cases of murdered Irish women, with questions mounting. What did Rachel Reece find out about the unsolved murder of Eileen McCarthy before she died? Who is feeding Terry anonymous information about the podcaster's endeavours? And why do the powers that be seem to want to thwart her at every turn? Another woman is murdered and, as pressure mounts to find the perpetrator, Terry's post mortem reveals something that might hold the key to everything.