Having supported each other through the first shaky years of widowhood the future was starting to look brighter. But when Janet is dealt another blow it's all hands on deck for the firm friends. Deciding what Janet needs is a change of scenery Viv and Zelda book a luxury cruise on the Queen Mary 2 heading for the bright lights of New York. And once on board the women are entranced. A floating pleasure palace the Queen Mary is just what the doctor ordered. From tai chi to dance lessons cocktails to crafting there's nothing they can't do to while away the miles at sea. But when they are joined at their first supper by fellow widow Primrose Carmichael the holiday takes an unexpected turn. Because not only does Primrose share Janet's surname but their late husbands were both called Mal. . . As the similarities between the two women stack up so do Viv and Zelda's suspicions. Determined to get to the bottom of the mystery before they're in sight of the Statue of Liberty the friends are ready to waive a few rules. . .