The House That Roared - S1.E3

Caren Campano disappeared and her husband, Chris became the prime suspect -- especially after police found a huge bloodstain on the Campano's bedroom carpet. When they sprayed the bedroom with Luminol, they discovered it was awash with blood spatter. Complex DNA testing - 'reverse paternity' tests - proved it was Caren's blood. Now all they had to do was find her body.