This episode tells the gripping story of how detectives solved the vicious and shocking murder of businesswoman Sadie Hartley, from the first call to the crime scene through to the convictions of the killers Sarah Williams and Katrina Walsh. As no-nonsense lead detective Paul Withers and his team piece together the evidence, they uncover a tangled web of lies told by Williams and her accomplice Walsh, who claims to have no memory of the crime.
This episode has not aired as it was postponed due to unspecified legal reasons.