This Italian/French/West German co-production could just as easily have been a cop thriller but for the element of Mark Stone (Kerwin Matthews) being a U.S. government agent. Locations in Venice and Rome keep things visually interesting, the cast is filled with recognizable faces, and the score by Gianni Marchetti is appropriately jazzy.
Stone's assignment is to guard the life of a king so we can have his oil. Sound familiar? By the way, at the beginning of the film, the killer uses an ice bullet in his first attempt to kill the king. This little trick was used two years earlier in the Ernesto Gastaldi-scripted Ring Around the World. The plot may be simple but Matthews makes for a good hero and The Killer Likes Candy has enough going for it to make it worth seeking out.