Miss Marple senses danger when she visits a friendliving in Stoneygates, a rehabilitation center fordelinquents. Her fears are confirmed when someoneshoots at the administrator. Although he is notinjured, a mysterious visitor is less fortunate—shotdead simultaneously in another part of the building.

Pure coincidence? Miss Marple thinks not, andmust use all her cunning to solve the riddle of thestranger’s visit … and his murder.