Octogenarian detectives Arthur Bryant and John May investigate the baffling case of a girl strangled but peacefully laid out in a private, locked garden, the first in a series of similar murders in London's parks.

"The brilliant duo of Arthur Bryant and John May uncover a nefarious plot behind the seemingly innocuous death of an old lady--and when the case leads them to the London Bridge, it all comes down on the Peculiar Crimes Unit. Ninety-one-year-old Alice Hoffman died alone in her top-floor flat. Social services say she slipped through the cracks in a failing system. But detectives Arthur Bryant and John May of the Peculiar Crimes Unit have their suspicions....