It's pretty good for what it is, but in telling the tale of Slade, a hired killer for the stagecoach, the story slides too easily into sentimentality and easy ways to show things. It does have the essential theme, that Slade's humanity is lost in his profession, and this theme is effectively explored. Van Cleef shows up for a minute; fans of his showboating bravura acting style are bound to be disappointed.
Review of Jack Slade
