A young girl, passionate about fashion design, is mysteriously able to enter the 1960s where she encounters her idol, a dazzling wannabe singer. But 1960s London is not what it seems, and time seems to be falling apart with shady consequences.

An opulent beach resort provides a scenic background to this amusing whodunit as Poirot attempts to uncover the nefarious evildoer behind the strangling of a notorious stage star.