Title: Melchior's Promise - Alain Demouzon - book
Summary :
The gloom and dreariness of the Fontenay-Central police station are behind us. Forgotten are the heinous murders and other suburban news stories. Recently relieved of his duties, the singular Commissioner Melchior has gone to nurse his wounds at his cousin's house by the sea. A little paradise on earth where he will, despite himself, have to return to duty. The motive? The murder, seven years earlier, of Mariette Pontel, a young woman found strangled in an abandoned blockhouse. A mystery that Melchior, like a good Samaritan, promises to solve. At the risk of putting himself in personal danger. For the murderer is far from having expressed his last wishes.