Perry Mason orders a double serving of trouble the night he and Della Street dine at an intimate restaurant after a hard day at law. In the middle of their steaks a waitress flees the premises in terror, leaving the puzzled proprietor holding her mink coat.

Why a humble working girl abandons such a pricey wrap is only the first question in a cop-killer case that traps Mason’s client with both an impossible story and the murder weapon, makes Perry himself a prime suspect, and blazes a gunpowder trail that leads straight to the heart of the police department itself.