When police in Massachusetts entered the Entwistle family home, they found a seemingly empty house. The TV was still on, plates were still out from dinner and no-one seemed to be anywhere to be found.. 

What they didnt realise was on top of the master bed, under a duvet, lay two bodies. A young mum and her baby daughter.

What the hell happened to these two innocent victims? And where was the missing husband? This is the tale of a double murder and an international manhunt. A case that will leave you questioning everything.