In the moonlight, the body hanging over the edge of the swimming pool looked like a decorative feature. Molly disliked Liz Ellerman - in fact it was an encounter with Liz which drove her to escape from the party into Peter's beloved garden - but she was shaken to find her dead. Being an avid reader of detective stories, Molly cannot help trying to solve the crime. When her husband Howard is arrested she stops being ashamed of her interest, and looks with new eyes at all her acquaintances. She finds that most of them have some reason to wish for Liz's death...