A policeman is missing. Is there anything sinister in his disappearance, or is there a simple explanation?

A quiet morning: a milkman on his round in a residential street. But the peace is soon shattered.

John Watt receives a tip-off which he believes could lead him to a 'crime boss'.

A barn is burned down. It could be arson, but the insurance is hardly worth claiming. And of course, fires do happen. But Evans is suspicious, and he goes in for a spot of bricklaying when the new barn is built.