一名美國退伍軍人被發現陳屍在海灘,身體被他的軍服綁在柱上,似乎是殺手要殺雞儆猴。Eloise隊長收起個人的不滿情緒,與身為二戰專家但關係疏遠的父親一同偵辦這起疑點重重的案件。Captain Eloïse Gentil, of Caen police, hasn't been on speaking terms with her father Robert, an expert on WWII, for twenty years. But the two are brought together to investigate the death of James Crawley, a 91 year-old former GI, found tied to a pole and in his uniform, apparently executed "as an example".