Suzy Marshall and Amanda Herbert have both found themselves on a transatlantic cruiser by accident: struggling actress Suzy has had her play abruptly cancelled under rather suspicious circumstances; and Amanda's found herself homeless in rainy Clapham after her flat purchase falls through. But the ship has barely left the harbor before Suzy and Amanda realize that there's something very strange afoot indeed. Neither can predict the strange characters and dodgy dealings they will encounter – nor the unexpected rewards to reaped at high sea. . . .