David Jason is a superb DI Jack Frost. He is funny, moody, lazy and untidy to say the least. And his role is portrayed realistically. He is the detective and he goes against his superior, Superintendent Mullet. It is very amusing and oddly enough, he always gets the better of him and solves the case. This is a gripping drama, with some good appropriate music from the saxophone and the actors are extremely realistic and make the job look just as it is. This is a nice evening murder mystery to give you something to watch on TV, but it is good and if at all possible, I wouldn't want to miss an episode.