S1, E1: In a North London suburb Nisha Patel Nasri was fatally stabbed in her home. She ran out to her driveway and shocked neighbors called 999, but it was too late to save Nisha. She was a popular local hairdresser and a special constable who, the night before the attack, had just celebrated her 3rd wedding anniversary. Was she targeted because she was a policewoman? Was this a robbery that went wrong?