“There’s no going wrong with a Denise Mina mystery.” (Entertainment Weekly) It’s the week before Christmas when a lone robber bursts into a Glasgow post office carrying an AK-47. An elderly man suddenly hands his young grandson to a stranger and helps the gunman fill bags with cash. He opens the door for the gunman and bows his head; the robber shoots the grandfather, tearing him in two. DS Alex Morrow arrives on the scene and finds that the alarm system had been disabled before the robbery. Yet none of the employees can be linked to the gunman. And the grandfather is above reproach. As Morrow searches for the killer, she uncovers a hidden, sinister political network. Soon it is chillingly clear: no corner of the city is safe, and her involvement will go deeper than she could ever have imagined.