London, early 1950s. Marcia Beasley of St John's Wood is discovered dead in her home, naked and covered with a coal scuttle. Detective Sergeant Greenleaf is tasked with solving the crime and bringing meaning to her gruesome death and it seems her whole social circle have secrets to hide and grudges to bear. Who, for example, is the limping midnight visitor? Is the bibulous priest as ingenious as he seems? And will Mrs Burkiss ever yield her keys to the broom cupboard?.