Jean-Claude Romand appeared to have everything: a beautiful wife, two children and a prestigious job as a doctor at the World Health Organisation. But it was all a lie. For 18 years he had lived a torturous double life, and when it finally began to unravel the result was fatal. This documentary reveals how one trivial lie led a man to murder his entire family. When Romand's family were found murdered, no one could understand why. But as the police investigated they discovered that Romand didn't work at the WHO, nor had he worked in the hospitals in Paris as he claimed: he wasn't even a doctor. Every day Romand set off for work - but he would drive off into the countryside or wander around the public areas of the WHO. He paid for his lifestyle by taking money from family and friends who thought he was investing it for them in a Swiss bank account. But as the money ran out and his secret world began to crumble, Romand took the only, terrible, route he thought was left to him.