In 1989 Sylvia Murphy and David Greenland set off to sail around the world on their 60 year old Maurice Griffiths' ketch, Nyala. While they were in Portugal they adopted one of the many lost, sickly kittens that haunt the harbours of Southern Europe. They called her Tyfoon, after the Belgian boat that first rescued her. This is the true story of how Tyfoon took over and re-organised the direction of their lives for the next eighteen years. It is a mixture of comedy and disaster, courage and love, that pulls at the heartstrings.