A crime series
This week: John Welsh as Roy Vickers's Inspector Rason investigates the case of "A Man and his Mother-in-Law"
Dramatised by Hugh Leonard
Also starring Barbara Couper, Donald Douglas, Lyn Ashley

'Is this where you keep stolen property?' 'Not quite, sir. Inspector Rason is in charge of our... um... dead ends.' And in Scotland Yard Inspector Rason sits surrounded by clues which have led to 'dead ends,' and waits-waits for a criminal to make a move which will connect him with a clue. In the Blagrove case there seems to be no motive - the victim had no enemies - there are no clues. The only thing found at the scene of the crime that seems out of place is a book of love poems. Can Rason find a link between this and the murderer?