I Heard That Song Before - Couverture souple

Kay Lansing grew up the daughter of the landscape gardener to the wealthy and powerful Carrington family. One morning, six-year-old Kay sneaks into a chapel in the grounds of the Carrington's house. There, she overhears a quarrel. A woman is blackmailing a man for money. When she says that this will be the last time, his caustic response is: 'I heard that song before.' That same evening, after a dinner dance, Susan Althorp - the daughter of neighbours - is driven home by Peter Carrington. Susan is never seen or heard from again.
A cloud of suspicion hangs over Peter over the years. Not only has Susan disappeared, but Peter's pregnant wife drowned in their swimming pool. At 42, he is head of the family business empire when he meets Kay Lansing at a cocktail party. Kay falls in love with him and they marry. To her dismay, she soon finds that he is a sleepwalker whose nocturnal wanderings draw him to the very spot at the pool where his wife met her end. Trying to quell her doubts, Kay believes that the key to the truth lies in the scene she witnessed as a child. What Kay does not even remotely suspect is that uncovering what lies behind these memories may cost her own life . . .

When Kay Lansing marries wealthy widower Peter Carrington, she is well aware of the rumours surrounding the mysterious death of Peter's first wife Grace, who was found floating in the family pool ten years ago, pregnant at the time. Kay also discovers that Peter is a chronic sleepwalker who suffers from periodic nightmares.
When the police arrive at her doorstep with a warrant for Peter's arrest in connection with another murder - that of a woman Peter had escorted to a high school senior prom twenty-two years ago - Kay begins to fear that she has married a sleepwalking murderer, and she resolves to find out the truth behind the puzzling deaths. But are the two deaths linked? And why does a melody that Kay cannot identify keep playing in her head every time she approaches the family chapel?