Leaky home experts John Gray and Roger Levie uncover the shocking truth about the dreadful and dangerous state of many apartment buildings in New Zealand.  Buildings that look sound turn out to be seriously defective, costing millions to fix, and in the worst cases, only fit to be pulled down.  The owners who thought they were making a good step on the property ladder, now find themselves faced with an emotional and financial cost that will affect the rest of their lives.  How did this building disaster come about and can it be fixed?