Alright, so it's not a British film, but I still need help. I last saw this when I was young, on the telly. An Aussie or NZ film, it's about a guy who commissions a builder to construct a house for him. The builder turns out to be a cowboy and makes off with the money leaving the job one quarter complete. Some of the arguments/fights are riveting and when one realises the film is a true story it chills the blood! But what is the title of the film?