Actress Caroline Fawley is enjoying life in her new role as 'the mistress of Alderley'. Her TV work made her popular and wealthy and she laps up the attention she receives from her new neighbours in the Yorkshire village, Alderley. And the romantic weekend visits from her boyfriend, supermarket heir Marius Fleetwood, provide the locals with something to gossip about. But Caroline's idyllic life is shattered when a young man looking remarkably like Marius unexpectedly turns up on her doorstep. Within a few weeks Marius has gone missing and it isn't much longer before a body turns up...