"He can kill you standing still. Or at 200 M.P.H." The Summertime Killer is an action-thriller about Ray (Christopher Mitchum), a biker who systematically hunts down the mobsters who brutally murdered his father when he was a child. While targeting the final boss in Europe, he kidnaps the mobster's daughter (Olivia Hussey) but falls in love with her instead. Christopher Mitchum (son of Robert Mitchum) delivers vengeance with relaxed, cool-guy energy, while Karl Malden tries to inject urgency as the cop chasing him across the continent. The result is stylish, breezy, and oddly romantic for a story about revenge.