Personal trainer Trey Ziegler was in peak physical condition. If you didn’t count the kitchen knife in his well-toned chest. Lieutenant Eve Dallas soon discovers a lineup of women who were loved and left by the narcissistic gym rat. While Dallas sorts through the list of Ziegler’s enemies, she’s also dealing with her Christmas shopping list—plus the guest list for her and her billionaire husband’s upcoming holiday bash. Feeling less than festive, Dallas tries to put aside her distaste for the victim and solve the mystery of his death. There are just a few investigating days left before Christmas, and as New Year’s 2061 approaches, this homicide cop is resolved to stop a cold-blooded killer.

若不把結實胸膛中的菜刀也算進去，私人健身教練崔伊身材可是好的沒話說。達拉斯分隊長很快就發現有群女人曾受這個自戀健身狂的寵愛，後來又遭其拋棄。達拉斯除了過濾崔伊可能的仇人，同時也需為聖誕節採買，並為她和億萬老公舉辦的假日派對擬賓客名單。因為死者過去的惡行，達拉斯毫無心思過節，但她試著將反感擺一邊，努力解開成謎的死因。但調查時間所剩不多，距離聖誕節只剩幾天，且新年也即將來臨，這位專辦凶殺案的警察決心要制止冷血殺手的行動。