While Acton and Doyle, two of Scotland Yardβs finest, pursue a self-appointed judge, jury, and executioner, Actonβs own questionable methods may prove their undoingβ¦
The victims are all criminals who eluded justiceβuntil they ran afoul of an avenger whose modus operandi is a bullet to the back of the head. The key to the vigilanteβs identity lies in connecting the cold cases to an event that may have triggered retribution after all these years.
Meanwhile, Doyle finds herself shadowed by a mysterious figure. After the man steps forward to rescue her from harm, she wonders why he is invested in protecting her. But when she learns heβs in contact with Actonβs nemesis, she fears sheβs being used in a plot against her husband.
The stakes are high, and both Doyle and Acton must work independently to outwit the playersβbefore their lives are brought crashing down like a house of cardsβ¦