When Carol and Stephen Baxter were found dead in their Essex home by their daughter Ellena, the deaths were initially deemed a tragic accident.

Weeks later, toxicology results revealed a chilling truth - both had been poisoned with the powerful opioid Fentanyl. As police launched a double murder investigation, suspicion soon fell on those closest to them. What detectives uncovered was a shocking web of deception - years of manipulation involving catfishing, coercive control, fake medical diagnoses and secret surveillance, all culminating in the couple's murder.

This gripping true crime series unravels a case so twisted that it defies belief - featuring exclusive interviews with the family and Essex police, chilling digital evidence and extraordinary revelations, this stranger-than- fiction investigation exposes how someone within the Baxters' inner circle orchestrated a ruthless campaign of control, fraud, and ultimately murder while watching it all unfold through a nanny cam.