Eddie Constantine plays Nick Carter Jr, son of the famous detective and a famous detective in his own right. (Actually I think his son is Chick Carter in the books but I digress). Nick was heading off to a well deserved vacation when an old friend of his father is found to be in danger. Carter changes his plans and heads off to help the old friend. From there the plot spirals out as Carter gets put on the trail of a gang of thieves out to get their hands on a new secret weapon. This is an amusing film that unfortunately is rather by the book, or rather by the Eddie Constantine book. If you've seen any of the Lemmy Caution films or any of Constantine's similar films you'll know what to expect. This is not a slap at the film, it's just the easiest way to describe the film which has Constantine as Carter wandering through the criminal landscape with a witty retort and fists or gun ready for any bit of action. To be certain it's a bit straighter and less tongue in cheek then some of the Caution films, but its cut from a similar cloth. I liked it but at the same time I found I wish I hadn't watched it close to several other Constantine films since they all blended together. Worth a look, but best viewed with some distance from the Lemmy Caution or similar films.