Joey Conway, a big-name newspaper columnist, turns up dead in 1973 and Detective Sam Tyler is certain he knows the killer. It just happens to be someone he remembers from another murder case 35 years in the future. Spurred on by powerful flashbacks from 2008, Sam's behavior seems increasingly erratic to Lieutenant Hunt, Ray, Annie and Chris, who have another suspect in mind. When Sam goes totally out on a limb and faces surprising consequences at the 1-2-5, it looks like the once-and-future killer may get away with the crime.