It's the off-season at the lonely Beauregard Hotel in Bournemoth, and only the long-term tenants are still in residence. Life is stirred up, however, when the beautiful Ann Shankland arrives to see her alcoholic ex-husband, John Malcolm, who is secretly engaged to Pat Cooper, the woman who runs the hotel. Meanwhile, snobbish Mrs Railton-Bell discovers that the kindly if rather doddering Major Pollock, played by David Niven, who won an Oscar for his performance, a retired officer who likes to find out more...

A clever science-fiction thriller which is genuinely thought provoking rather than just visually mind-blowing. On the thirteenth floor of a tower block three men have created an amazing virtual world set in 1937 Los Angeles, but the brutal murder of the project's leader leaves one of the designers, Douglas Hall, as the main suspect. In order to vindicate himself and indeed find out whether or not he is the killer, Hall must immerse himself in the virtual world he has helped to create and attempt find out more...